Bloopers are production errors by cast or crew that are heard or visible onscreen. Continuity errors are bloopers that don't match storyline or timeline from other parts of the same episode or other episodes. Confirmed bloopers and errors so far are listed below, by episode.

Given the enormous detail and complexity of the mysteries of Lost (and the fact that fans are actually encouraged to do such microanalysis through the placement of real Easter eggs), the show is perhaps the most closely-scrutinized in history, and therefore subject to greater criticism for minor errors not caught in the editing room. Many production errors have in the past been mistaken for clues the writers intended to leave. Some still remain persistent rumors which spawn misdirected theories about time travel and odd conspiracies.

Officially confirmed errors are noted in blue; debunked errors, which were thought to be accidents but turned out to be deliberate anomalies or otherwise explainable, are noted in red.

Season 1[]

Episode Blooper Type
"Pilot, Part 1" The black object that appears to swoop down in front of the turbine engine just prior to it exploding was believed by many fans to be the cause of the explosion, and related to the Monster. This was later refuted by the producers as being an artifact of poor CGI effects, which should have been shown radiating out after the explosion was rendered, instead of approaching the turbine before. The producers also said that The Monster never appears in the Pilot episode.[1] Visual effects
"Pilot, Part 2" During the plane flashbacks, the audio of the voice of Cindy through the speakers say different words. In Jack's flashback, Cindy says, "Ladies and gentlemen, the Pilot has switched on the fasten seatbelt signs." In Charlie's flashback, Cindy says, "Ladies and gentlemen, the Captain has turned on the fasten seatbelt signs." In Kate's flashback, Cindy says, "Ladies and gentlemen, the Captain has switched on the fasten seatbelt signs." Dialogue
Between Jack's and Charlie's flashbacks, the order of Rose's "Guess he really had to go" line and Cindy's "Excuse me" doesn't match up. Dialogue
Jack lied to Boone about having found the plane's cockpit. However, after Sawyer shot the bear, Boone said "Do you think that's what killed the pilot?", contradicting that he didn't know what happened. In one of the Season 1 deleted scenes, Sayid tells Kate, "The others, they’ve heard about the thing you saw. The pilot. I can understand why you wouldn’t talk; you didn’t want to frighten us. But your English friend has been telling anyone who will listen." This indicates that Charlie may have blabbed about the incident to other survivors. Dialogue
Both Sawyer's hair and Sayid's facial hair is notably longer in the final scene of the episode than it had been in previous scenes. Hair and makeup
"Tabula Rasa" After Sayid returns from the trip to try and get a signal with the transceiver, he gathers a group of people and begins organizing them into teams. He says that he needs three teams— one to gather electronics, one to set up tarps in case it rains, and one to begin rationing food. After the scene cuts away, Sayid can be heard in the background saying "... and I will need a third group to begin construction of..." He already made three groups, and he made no mention of this task in his initial list of what needed to be done. Dialogue
Just before Kate and Jack depart for a walk on the beach, the camera briefly cuts back to Sayid. Neither his lip movements nor his actions match his lines of dialogue that can be heard ("These are bad on acne. Stay out of the sun..."), which indicates that those have been dubbed over in post-production. Dialogue
"Walkabout" When Randy Nations enters the lunchroom, he puts a coin in the vending machine and immediately reaches for the candy bar, without entering the choice on the keypad. Props
When Charlie takes out his bag of heroin while lying on the beach before Shannon finds him, a brown building/hut can be seen in the far distance. Setting
"White Rabbit" Charlie and Hurley are complaining to Jack about the water supply. As the three talk, there is a couple walking past behind Jack. They go by, the camera cuts to Charlie and Hurley, then back to Jack; the same couple passes by again. Actor placement
At the beginning of this episode, Charlie warns Jack that someone is drowning, claiming he would help, but he "do[es]n't swim." This directly contradicts his swimming aptitude in Greatest Hits. Plot
"House of the Rising Sun" Jin starts a fight with Michael. Jin runs towards Michael, who is wearing the Rolex watch. When Michael has fallen into the water with Jin in top of him, the watch is no longer there; yet when the fight is stopped by Sayid, the watch is visible again. Props
Sun's flashback at the Oceanic ticket counter at Sydney Airport doesn't match up correctly with Jack's flashback from the previous episode. The counter (which is actually a stage set) is not in the same spot, and although some background extras are reused, they (as well as Jin) are suddenly in line behind Jack instead of standing at the counter next to him. Setting, actor placement
"Confidence Man" Sawyer tells Jessica that he has $140,000 in the briefcase and he needs someone to go in with him and provide the other $160,000. Later on in the same episode after Sawyer had left the money with Jessica and her husband David to count, he is talking with Kilo who asks him why he left $160,000 of his money in the care of a civillian. Dialogue
Kate visits Sawyer in the jungle after his torture. In this sequence, Sawyer's hair alternates several times between hanging in front of his face and pulled off to the side, even though his hands are tied behind his back. Hair and makeup
"Solitary" On the golf course, both a wooden fence and a parked car can be seen in the distance. Setting
"All the Best Cowboys Have Daddy Issues" The original discovery place of the Hatch in this episode seems to be a low valley with rocks and dirt at the bottom. However, in every episode after this, the Hatch is shown in a flat jungle clearing. Setting
"Whatever the Case May Be" Kate and Sawyer pull the Marshal's briefcase out from under a dead passenger's seat at the bottom of the lake. Later on, Kate explains to Jack that the case was not in the Marshal's possession because the airline made him check it. If it was checked, how did it get from the cargo area to under a passenger's seat? Additionally, in "Exodus, Part 1" the security officer from Kate's flashback tells Edward Mars that he must stow the guns in the crew luggage compartment in the front, to which he responds with "No problemo." Plot
"Hearts and Minds" When Locke gives Sayid his compass to use Sayid lays it down next to the magnet he was using to create his own compass. Someone with Sayid's background would know that he would not be able to orient the map with the compass sitting next to a magnet. Props, Acting
"Special" In a flashback, Michael is using a pay phone to talk to Susan, who is overseas. From dialog, we learn that Walt (who is 10 in the Island sequences of 2004) is 21 months old; so by subtraction we can infer that this is taking place in 1996. Over Michael's shoulder, we see a New York City subway station that is served by the N, R and W trains. But the W train did not start running in New York until July 2001. (Wikipedia link:W (New York City Subway service)) Setting
In the scene inside Susan and Brian's home, an unexplained woman can be seen sitting in a chair in the corner of the room and watching the scene. She was presumably a crew member accidentally in-shot. Crew placement
"Outlaws" Sawyer's mother is addressed by his father as Brooke. He later tells the real Sawyer her name was Mary in "The Brig". Plot
After the boar runs Sawyer down and he falls into the mud, a bit of the metal fence is seen in the corner. On the DVD extra "Lost: On Location (Season 1)", it is shown that this fence was part of an effort to corral the reluctant boar to run in Josh Holloway's direction, since the animals are not as aggressive in real life as shown on the show. Setting
When Charlie and Hurley are digging Ethan's grave, the body of Ethan is seen slowly breathing. Acting
Also, before Charlie and Hurley start to dig Ethan's grave, it is clearly daytime. When the shot changes to show Charlie and Hurley digging with Ethan in the foreground, the sky looks like sunset. After that shot, it goes back to daytime, and in the scene that follows, the sky looks nothing like a sunset. Setting
When Sawyer and Kate play "I never", his little bottle seems to be refilled. However, since Sawyer stole the alcohol from the fuselage, it is possible that he had more than one bottle and switched them between shots. Props
The terrain around Duckett's shrimp stand, outside of Sydney, is depicted as a flat plain. In reality it is (by Australian standards) quite mountainous. Setting
"...In Translation" When Locke and Shannon are talking in the jungle, the blood on Locke's face changes between shots. Hair and makeup
"Numbers" When an exterior shot of Martha Toomey's outback house is shown no cars can be seen anywhere, but when Hurley is in the house, a car can be seen outside. Props
"Deus Ex Machina" Jack's backpack changes between shots when he speaks to Sawyer. See position one and two. Props
When searching for the Beechcraft, Locke can be seen using the compass he gave to Sayid in ("Hearts and Minds") Props
"Do No Harm" While playing "Heart and Soul" on the piano with Sarah, the keys we see Jack play on the keyboard don't correspond to the chords heard in the song. Audio, acting
"Born to Run" There is a typo on a door in the hospital ("Imagining" instead of "Imaging"). This could, of course, be an intentional Easter egg, as part of the dreams and visions theme. Props
Before visiting Tom Brennan and subsequently contributing to his death, Kate reads a letter sent to "Joan Hart", while holding a new (colored) $20 bill. These new bills entered circulation on October 9, 2003. However, in "Exodus, Part 1" Edward Mars mentions before boarding flight 815 (on September 22, 2004) that Tom's death was "a couple of years ago". Props
"Exodus, Part 1" As Rousseau approaches the beach camp, Kate is supposed to be asleep, but she has her eyes open for a few seconds. Acting
When Walt notices the black smoke on the horizon, there is a wide shot of the survivors staring at the smoke. In that shot, the raft is several feet behind the group. Then the camera cuts to Jack and slowly pans around him to show the other survivors. When the raft comes into view, it's suddenly right next to the survivors. Also, several of the survivors are standing in different positions with relation to each other as compared to the previous shot. (screencaps) Setting, actor placement
When Sun approaches Jin on the beach to give him a book to help him learn English, they embrace and make up. In one shot Sun has her hand on the back of Jin's head/neck, then the camera cuts to Jin's face and her hand and arm are nowhere near his head. The camera quickly cuts back to Sun's face and her hand is once again on Jin's head/neck. Actor placement
A cameraman in the water is visible in the scene as the raft leaves and Vincent tries to follow. Crew placement
On the day of Flight 815's takeoff, which was September 22nd, 2004, Walt is watching Power Rangers S.P.D. on TV. That particular show did not first air until February 2005, and didn't run in Australia until around November 2005. Media reference
In the scene of the raft leaving, after Sawyer puts the sail up, a black object in front of the raft is visible, presumably a mechanical connection to tow the raft. Crew placement
"Exodus, Part 2" In the Michael and Walt flashback, Walt asks for new batteries for his Gameboy Advance SP. SPs do not use replaceable batteries; they use a special plug to recharge them. Props
In addition, the sound effects used for the video game Walt was playing was for the Atari 2600 Pac-Man game. This appears to be a very common stock sound effect for video games used on all kinds of television shows, not just Lost, as discussed here. Sound effects
A boat is visible in the background as Sawyer jumps off the raft to check the rudder. Setting
While the set building department did an overall good job of recreating the interior of Oceanic Flight 815, down to the patterns on the seat covers, a small number of details don't match up completely with the plane interior seen in "Pilot, Part 1" and "Pilot, Part 2". Namely, the additional covers on the seats' headrests and the magazine pockets on the partition walls are missing. (Comparison images: [2], [3], [4]) Setting

Season 2[]

Episode Blooper Type
"Man of Science, Man of Faith" Two different versions of the Hatch door are shown, where the metal finish and stenciling of the word "QUARANTINE" varies. (Image at Lost.cubit.net) Props
The control panel is reversed (right-left) in two of the shots. This is one of the more common mistakes in filmmaking (when the scenes get reversed during editing). Props, editing
After the N.D. Survivor says to Charlie "But the... but the French woman said...", she breaks the fourth wall for a second by looking directly at the camera. Breaking the the fourth wall
"Adrift" Earlier, in "Man of Science, Man of Faith", when Jack goes to press a button on the computer, Locke says, "I wouldn't do that." In "Adrift", when we see the same scene from Kate's point of view, Locke says, "I wouldn't do that, Jack." Dialogue
The record player inside varies between steel and wood finish, depending on the episode. (Images at Lost-TV "Who swapped out..." thread) Props
The desk lamps also change models slightly through Season 2. (Images at Lost-TV "Who swapped out..." thread) Props
The shark which is seen to have a DHARMA logo printed on its tail was originally intended to be a near-invisible hidden Easter egg for attentive fans. However, an editing error made the shark's logo much more visible than it was supposed to be. As a result, the writers were forced to hint at an explanation for this in "A Tale of Two Cities", with the Hydra's shark tanks. Editing, lighting
When Michael and Sawyer are on one of the parts of the raft, a yacht can be seen in the background. This is before Desmond leaves the Island on his yacht. Setting
The Solicitors' room where Michael goes is the same in which Claire was going to sign an adoption contract for Aaron. However, one room is set in Australia, the other in New York. Setting
The SIG-Sauer P228 given to Sawyer by Jack in "Exodus, Part 1" changes to a Beretta M9 when Sawyer attempts to shoot the shark. Props
Sawyer recounts, "French chick said the Others were coming for a kid," to Michael, even though they were already in the ocean when Danielle Rousseau said that in "Exodus, Part 2". Plot
When Locke enters the Numbers into the Swan computer, he does not press the spacebar (the computer seems to add it automatically)— yet when Desmond does it earlier, he presses the spacebar key after every number. This might not be an error if either way of entering the numbers works, but it is puzzling that Desmond would put in the extra work; perhaps he uses the spacebar as a buffer to help avoid accidentally entering a wrong number without noticing. (This would logically follow from the universal importance that Desmond places on the act of entering the Numbers.) Props
"...And Found" The dates on Jin's resume have the wrong years. (Image at Lost.cubit.net) Props
"Abandoned" In "Man of Science, Man of Faith", the EMT's discussion with Jack indicates that Sarah was driving a regular car that ran head-on into a SUV ("Her tire blew, car jumped the divider, went head-on with an SUV."); however, when this same car accident is described in this episode, the ER doctor informs Sabrina Carlyle that "Your husband was in a head-on collision with an SUV," indicating that Adam Rutherford was the driver of the car that ran into the SUV, not Sarah. [5] It is possible that they both drove SUVs, but then Adam Rutherford and Sarah probably wouldn't have been so badly hurt. Another possibility is that the EMT was simply mistaken, confusing the two victims' cars. Plot
In "Orientation", Desmond tells Jack he was stranded on the Island three years ago. Obviously, that happened after Jack's encounter with Desmond in the stadium in "Man of Science, Man of Faith", which occurred not too long after the accident that resulted in the death of Adam Rutherford. However, according to this episode, Shannon was 18 years old when her father died. In "Raised by Another", she tells Hurley that she's 20 years old, which would place the death of her father two years before the crash of Oceanic Flight 815. However, this discrepancy can be easily reconciled if Shannon lied about her age, or was just short of her 21st birthday. Plot
"The Other 48 Days" During a conversation between Goodwin and Ana-Lucia, a white car is visible in the background. This error was digitally fixed for the DVD version, confirming that it was a mistake. Setting
After Ana Lucia impaled Goodwin and leaves him for dead, the immediate surrounding consists almost entirely of grass. However, when Jin found his body in "...And Found", Goodwin was surrounded by different vegetation, such as ferns and other leaf plants. Setting
When Boone used the radio in the small plane, he heard a voice on the other end. This should have been Bernard's voice. The script is different from Boone's transmission to Bernard's. Although they are very similar, there are a few words different between them. Audio, dialogue
"Collision" In "The Greater Good", Sayid takes a Glock 26 from Locke (the pistol from the drug smugglers' plane). When Ana Lucia shoots Shannon, Sayid pulls out a SIG P228. Props
As Locke is working on a crossword puzzle while sitting at the button, he goes to fill in a missing word (the only blank left from what we see of the puzzle). His handwriting changes from all other blanks that have been filled in already. Moreover, as noted in Finding Lost: The Unofficial Guide, the answer he fills in makes nonsense of all the other completed entries. Props
"What Kate Did" When the black horse appears to Kate and Sawyer, a gloved hand can be seen on the right of the screen; it's probably the horse trainer. The hand was removed from the Season 2 DVD version of the episode, confirming that it was a mistake. Crew placement
During Kate's flashbacks, some fruit can clearly be seen marked as being from 2005. Carlton Cuse and Damon Lindelof acknowledge this is a continuity error. The flashbacks were occurring in either 2000 or 2001. (Official Lost Podcast/January 23, 2006) Props
When Eko tells Locke the story about Josiah, he says, "the Book of Law. You may know it as the Old Testament." The "Book of Law" actually refers only to the Torah (the first five books of the Old Testament), and especially to Deuteronomy. The story is found in the second book of Kings. Dialogue
"The 23rd Psalm" Before the Beechcraft takes off in Nigeria, the callsign 5Z-GWN6 can be seen written in large black letters on the side. However, when Eko investigates the plane's wreckage on the Island, it has been replaced by the callsign N3785A, written in much smaller white letters across the dark stripe. The 5Z- designation is used for Kenyan military aircraft (as compared to 5Y- for civilian) [6] [7] [8], whereas N3785A is the real callsign of the plane, which was a Beechcraft formerly registered in Maui, Hawaii.[9] Props
While Eko talks to the woman who was selling Virgin Mary statues, there is a big earring in his right ear. When he enters the church to talk with his brother, there is no earring in his right ear. Props
"The Hunting Party" The X-rays are incorrectly dated November 16, 2005. (Image at TVSquad.com) Props
When Tom holds Kate hostage, you can hear him cock his pistol (off-screen) with one hand. The pistol, as we see in the next shot, is a Luger P08, which has to be cocked with two hands. Props
"Fire + Water" In Charlie's dream, as he's swimming out to try and save Aaron, you can hear him breathing and even speaking when he puts his head underwater. This error was made due to looping the sound. Audio
"The Long Con" Jack clearly calls out "Jack!" instead of "John" when calling Locke to get the combination to gun vault from him. This was fixed on the Season 2 DVD, confirming that it was a mistake. Dialogue
Cassidy's shirt buttons are changed during the conversion between Sawyer when he drops the money. Props
This episode is set in Iowa (as evidenced by the decorative Iowa plate in diner, the presence of Kate's mother, talk of Sioux City, etc.), yet the large trees outside Cassidy's window are clearly Norfolk Island Pines (Araucaria heterophylla). These trees only grow in tropical or subtropical environments, and would never survive the Iowa winter. Setting
When Sawyer enters the Numbers into the computer, the timer can briefly be seen missing the CGI-numbers on it. Editing
"One of Them" The armory is made bigger to accommodate holding Ben. It changes from a tight room to a wider room. Space is made for the bed that was not there in the beginning of the season. Setting
"Maternity Leave" A camera/mic can be seen in the top-right of the screen as Rousseau, Kate, and Claire walk through the jungle at around 22:17. Crew placement
As the trio discovers the Staff, it is dusk, and raining heavily. As they open the door and the camera is looking upwards at the characters, it is much brighter outside, and although you can clearly hear the rain, there is no rainfall anywhere on screen, and the characters are not getting any more wet than they already are, even though they are still standing outside. Setting
"The Whole Truth" There's a grammatical error in the subtitled English ("you're" instead of "your"). This has been fixed in repeats of the episode. Subtitles
In the subtitled English during a flashback, Sun and Jin's surname is subtitled as "Kwan" instead of "Kwon". Subtitles
"Dave" Hurley takes a photo with "Dave" when it is clearly daytime outside the window. In the later Polaroid that Dr. Brooks shows him (of Dave not being present, but which otherwise should be the same scene), it is dark outside the window. Also, some of the Connect Four chips and the plate of celery stick on the table have been moved. (Image at Lost.cubit.net; confirmed as an unintentional error here in Jorge Garcia's Fuselage post) Setting, props
"?" In the previous episode, Locke, Jack, Sawyer, and Kate leave the beach for the Swan while it is still daylight. However, near the beginning of this episode, they are still walking to the Swan, and it is pitch black night. The Swan is only meant to be half a mile away. Setting
When Michael comes stumbling out of the the Swan station's main door, it has suddenly changed to a double metal door with a tampographed Dharma logo like on the Staff entrance. In "Everybody Hates Hugo", "What Kate Did" and "Fire + Water", the entrance has always been comprised of vertical wooden planks like the Arrow entrance. Setting
When Kate and Sawyer return to the beach to retrieve the heroin from Sawyer's stash, it is broad daylight again, even though it doesn't appear that Jack has been trying to save Libby's life for several hours. Furthermore, when Hurley approaches them and asks them whether they have seen Libby, he hardly gives the impression that a full day has passed since she went to the Swan looking for blankets. Setting
Ian McVay reads from notes that are supposedly about Charlotte's post-mortem, but in actuality are the progress notes about a living female patient at Queens Hospital (in Honolulu). (Image at Lost.cubit.net) Dialogue
Ian McVay is clearly called Ian by Valerie McTavish, and the captions confirm that his name is Ian. However, during the end credits, he is listed as Dr. Ivan McVay. Credits
In Eko's flashback at Sydney Airport, an arrival/departure display can be seen right next to the moving stairs in the background, which has never been there in any of the previous flashbacks from Sydney Airport. Setting
"Three Minutes" The list that Michael burns near the beginning of the episode is pink, but in a flashback later on in the episode, it looks more yellow. This may, however, be due to the different lighting in each scene. Also, the handwriting on the list is different between those two scenes, despite the names on it being the same. Props
The firearm that Michael has at the beginning of the episode changes. Locke hands him a shotgun (note that it does not have sights). He knocks Locke out with the butt, then it becomes a rifle (note at this point it has sights). Props
After Tom shouted, "Bring her out, Alex!", we first see Alex and Pickett arguing before Pickett eventually brings Kate out. However, in "The Hunting Party", Kate is pushed out of the bushes immediately after Tom's command. Dialogue
"Live Together, Die Alone" Just after the intro recap, when the Losties are running towards the boat, you can hear Sayid say "Perhaps it's Desmond." Sayid never met Desmond before and has no real reason to suspect it might be him at this time. Dialogue
The Ana-Lucia/Libby funeral supposedly takes place at sunset at the end of "Three Minutes", but moments later, in the opening scene of "Live Together, Die Alone, Part 1", Jack, Sayid and Sawyer swim out to Desmond's boat under a bright midday sun. After the "LOST" title screen, it is suddenly night, even though it seems that not much time has passed since the previous scene. Setting
Just after the opening "LOST" title, when Kate is asking Jack what to tell people about the boat, the voices in the background are reversed. The first voice asks, "How many people?", and the second asks, "How many people can fit on the boat?" The same audio can be heard just before the voices are reversed. Audio
When Jack climbs aboard the Elizabeth, he is seen switching the safety lever on his Beretta downwards. That would turn the safety on, not off. Props
The introduction of Our Mutual Friend and the fail-safe key in this episode appears to contradict earlier episodes. In "Orientation", Desmond makes no mention of the key, even though he fears that the Swan computer cannot be repaired. In that same episode, Desmond flees what he thinks is imminent destruction without taking his precious book with him. Plot, props
On the lava coastline, as Desmond is wrestling with Kelvin, a crew member crouched behind some rocks is revealed by his or her hat peeking out. (Image at Lostvirtualtour.com) Crew placement
In a flashback, Desmond is shown witnessing a dramatic System Failure. Yet, in the earlier episode "Orientation", he makes no mention of this, even when Jack proposes that the Swan station is simply a psychological experiment. He also fails to mention this to Locke until it is too late. Plot
Two different versions of the prop used for Penelope's letter are used. Props
In Desmond's flashback with Kelvin, Kelvin turns on the record player from the start quickly, so that the needle falls on track one of whatever album was playing. However, the song is "Chains and Things", which is actually track 7 on the B.B. King album
Indianola Missisippi Seeds.
Props, audio
When Eko inspects the power box, we initially see that it is wide open. However, when he moves closer, it is nearly closed. Props
When Eko runs out of the Swan when Locke and Desmond are faking a lockdown, you see Eko put his club in his belt right in the front of his pants. As he passes out of the door in the next scene, the club is gone, and when he runs back to the door as it is closing, he is holding it in his hand as he drops it and it is snatched from under the door. Props
When Eko climbs out of the Hatch, it is a lot more buried in the ground again as compared to Season 1 (starting with "Deus Ex Machina"). Also, the Hatch door is a lot larger than it was in Season 1, the same problem as when Jack and Locke were staring down the shaft at the beginning of "Man of Science, Man of Faith", as compared to the end of "Exodus, Part 2". Setting
The number formats of the log printout have changed from the original, introduced during "?", when Locke and Eko discover the Pearl station. When Desmond looks at the print out during this episode, he sees 922044:16, which would translate to 09-22-2004 4:16. The original log contained number sequences like 41602054:05, 41602055:53, and 41602088:17, which don't match the later format. Props
When the five survivors discover the capsule dump on the way to attempt Walt's rescue, Sawyer's gun alternates between cuts; he is holding it on his shoulder in one, and dangling it below his waist in the next. Props
As Locke takes the computer and smashes it, he seems to only take the monitor. The keyboard and the CPU are still sitting on the desk. The code could still have been entered into the computer, only without being able to see what is being typed. Props
On the Pala Ferry, Alex tries to pick up Kate, who has her hands tied behind her back and is gagged. Alex accidentally grabs Kate's breasts, then quickly removes her hands, and can be seen smiling as she readjusts her hands. It is possible that Kate made some sort of noise in surprise at this, since Jack can be seen jerking his head towards Kate at that exact moment and then immediately correcting himself. The sound would not appear in the audio overdub used in the actual episode. (Animated GIF image at YTMND) Acting
In the background of the Others' boat that Michael and Walt are sent out with, there is a glimpse of a small second island (real life Hawaii filming location, "Chinaman's Hat"). It is possible that this could be intentional to depict what we now know to be the second Hydra Island; however, this is not likely, as this island is not supposed to be visible when Sayid, Jin and Sun visit the Pala Ferry. Setting
Two different actresses appear in Desmond's photograph in this episode and in "Man of Science, Man of Faith"/"Orientation". The initial photo was obviously taken prior to the casting of Sonya Walger as Penelope Widmore. This was confirmed to be an error when the production team corrected it in the re-airing of "Orientation". Props
As everything metallic flies towards the magnet in the Swan, Eko's cross remains dangling from his neck before suddenly flying off his neck. Props
During Desmond's flashback to trashing the Swan in anger, he first pulls the ping-pong table away from the bookcase and then begins pulling books down from the bookshelves. When he finishes, he turns around and steps on the top of the ping-pong table, which has now been completely dismantled: the two halves of the surface are sitting separately and directly on the floor (although there is no visible damage to it.) Subsequent shots, including the "real-time" scene immediately before the flashback, show an undamaged and intact ping-pong table. Props

Season 3[]

Episode Blooper Type
"A Tale of Two Cities" Juliet puts a CD in the player that plays Petula Clark's song "Downtown", however, the jewel case shown is that of a Talking Heads CD. The producers acknowledge that they made a last-minute change of music. (Official Lost Podcast transcript/October 09, 2006) Props, audio
In the opening scene, the Others watch Oceanic Flight 815 break apart above the Island, with the tail section barely rotating while tumbling down. However, at the beginning of "The Other 48 Days", the tail section comes crashing in from the seaside, rotating a lot faster than in this episode. Visual effects, setting
When Juliet and Ben are watching Flight 815's mid-air break-up, there is a white van shown in the very lower right corner, just within range of the camera. This was not fixed for the DVD release, thereby at least suggesting that this is not actually considered an error. Setting
When Kate first steps onto the beach she has a black band around her right wrist. By the time she sits down to put the cuffs on it is gone. Props
In the breakfast scene with Kate and Ben, at first the Ketchup has no label. After Ben asks Kate to put on the handcuffs, the bottle has a DHARMA logo on it. Later when Ben is putting ketchup on his eggs, the bottle again has no logo. Props
The crossword puzzle that Jack has in his car is dated to 2006. Props
"The Glass Ballerina" Crew visible, reflected from the cabinet mirror, in a promotional still featuring Jin and Sun. Crew placement
When Jin goes to visit Jae Lee, he exits the elevator on the second floor (as evident by a number plate saying "2"). When he confronts Jae, however, they suddenly appear to be on the 15th floor (as evident by a door plate saying "1516"). Setting
After Jin is finished with Jae Lee and is back in his car, he is visibly hiding his face from debris right before Jae Lee hits. Obviously Jin doesn't actually know Jae Lee is falling, this is probably just the actor protecting himself. Acting, Editing
"Further Instructions" When Locke wakes up after the implosion, and picks up and examines Eko's Jesus stick, Locke is suddenly wearing his backpack and it is gone the next second. Props
In the flashback, the birth dates do not match on Locke's gun license and driver's license, one of which has him at 48 (1956), and one which has him at 58 (1946). (Image at Lost.cubit.net) If Locke were 58, this would mean that his mother gave birth to him when she was 6, according to the information from her Santa Rosa Mental Health Institute papers (her birthday is 1940 there) from "Deus Ex Machina". (Image at Lost.cubit.net) Props
Locke is bald in his driver's license, although in the episode he has hair. Hair and makeup
Eko doesn't have the same haircut that was shown in "Live Together, Die Alone, Part 1". His beard is also shorter. Hair and makeup
The length of Boone's hair is longer in this episode's dream sequence than it was when he actually died. ("The Greater Good") (This is a dream sequence, anything can happen) Hair and makeup
"The Cost of Living" Jack asks Ben if he is having symptoms of numbness and tingling to his fingers and toes, yet the tumor on his X-ray is assessed to be over the L4 vertebra and is clearly lumbar (would only have paraesthesis in upper extremities if it was a cervical tumor). Dialogue, props
"I Do" Kate asserts that she and Sawyer are a team, saying "You break the rocks, I haul them", when in fact this was vice-versa in "The Glass Ballerina". Dialogue
Pickett's gun changes between SIG-Sauer P226 and Beretta M9 (when he approaches the cage, he has a SIG, then, when he drags Sawyer out, he has a Beretta, and then when Tom calls him on the walkie-talkie, Pickett has a SIG again). This same blooper is seen in "Not in Portland". Props
"Not in Portland" At the end of "I Do", Jack said, "Kate, you have about an hour headstart before they come after you". After that follows a long pause, after which Kate asks, "Wait, where are you? Where are you?" Jack's voice can't be heard on the walkie-talkie Kate is holding, yet at the beginning of this episode, Jack also says "Take a walkie, take Sawyer, go." right after the "headstart" line. Dialogue, props
When Alex leads Kate and Sawyer to the Hydra building to rescue Karl, as Aldo stands up to guard the door to the facility, he drops the book he was reading before. When he gets tackled to the ground, the book (that was seen before dropped on the ground next to him) is not seen there anymore. Props
"Flashes Before Your Eyes" When Desmond is carrying Claire out of the water, one of the straps on Claire's clothes clearly shifts position. Props
The dialogue of Charlie and Desmond both before and after the lucid flashback changes. Dialogue
When we are shown scenes from "Live Together, Die Alone, Part 1", the countdown timer beeps even after it has reached zero, when we know from "One of Them" that it stops once it reaches this. Audio
During Desmond's interview with Charles Widmore, his tie shifts between being behind his jacket to being in front of his jacket several times, and some of the shots are mirror reversed. Props, editing
A large number of inaccuracies are present in the "London" scenes: the US style taxi beacon; a small dome and other unidentified buildings on the South bank (the dome is the planetarium of the filming location[10]); a totally US-style pub, with "Olde Worlde" style food carts, etc.; and a Royal Scots poster with the word "honor" on it (the real correct spelling is "honour") below a soldier in US Army uniform. Setting, props
According to the producers, Desmond traveled back to 1996 in his "lucid flashback" (Official Lost Podcast/February 20, 2007), however, the taxi behind Charlie had a 2001 registration number, and some of the vehicle models (such as red "new" Mini Cooper and "bendy" bus) were not manufactured until June 2002. Setting
One of the soccer ads advertizes the TV show Exposé, which shouldn't even exist at this point considering that the flashback is set in 1996, and Nikki was only shooting the season 4 finale of Exposé a few days before the crash of Oceanic Flight 815 on September 22, 2004. Media reference
"Stranger in a Strange Land" When Chet and his gang are beating up Jack, the blood on Jack's face switches in between shots. Hair and makeup
"Tricia Tanaka Is Dead" When Hurley's father drives off on his motorcycle in the flashback set in 1987, a ca. 1999 Toyota Corolla turns around the corner. Setting
In the scene where Vincent brings Roger's decaying arm in his mouth to Hurley and Charlie, the hand seems to move up further in the dogs mouth in the separate shots, and the hand changes to the other side of Vincent's mouth. Props
Besides the road map, none of the scraps of paper in the back of the van were meant to be seen, but one, the so-called Ho`oulu Lāhui document, managed to make it on screen. Script coordinator Gregg Nations has confirmed that the document was simply an arbitrary prop with no relevance to the Lost universe. Further, due to the fact that there are real places and real people associated with this paper, it would be an abuse of personal privacy to pursue this any further. Props
When the van is coming down the ramp, in the back you can see a mountain which has grown diagonally. Setting
Charlie has a small cut while shaving and in subsequent shots he doesn't and then the cut re-appears again. Hair and makeup
"Enter 77" After Sayid got kicked by Mikhail, his shirts lifts and you can see a white cable running from his pants over his body to his chest. Actor placement
"Par Avion" Claire's mother being in a coma does not seem to fit with the exchange Claire had with Thomas regarding her mom disowning her in "Raised by Another". (Alternatively, Thomas' remark might be a sly reference to the fact of her mother's unconscious, bed-ridden state.) Plot
Nor does Claire's mother being in a coma fit with the comment made by Claire's friend at Malkin's regarding Claire's pregnancy: "She hasn't told her mom yet, we're afraid she might..." in "Raised by Another". (Alternatively, Claire's friend might be referring to Claire's de facto mom, i.e., her aunt.) Plot
Although some speculated that Charlie had secretly not attached the note to the captured seagull based on it being visibly tucked in Dom Monaghan's hand, ABC's online summary later confirmed that Charlie was meant to have attached the note based on it saying, "They attach it to the bird and release it," therefore what the audience saw was an error. Props
Charlie folds the note into a small square twice. Props
When Kate is hanging from the log ramp over the sonar fence, her gun is suspended on her right shoulder; when she jumps down, it is on her left shoulder. Props
The dashboard in Claire's car at the accident scene shows a speedometer in miles-per-hour, but the norm in Australia would be kilometers-per-hour. (Although it may be an American bought car) Props
"The Man from Tallahassee" When Kate enters Jack's house, a jacket appears on the door that wasn't there when she first opened it. Props
When Alex returns to Ben's house with Sayid's pack, the clock behind Ben shows something similar to 1:40. Locke grabs the pack and the camera moves back to Alex and Ben again. This time, the clock shows 4:12. Then, while shown for a third time, the clock marks 1:40 again. Props
When Jack is asking for his friends to be released, Ben replies and Jack walks off. The camera cuts to the women, then back to Ben, and Jack is by him again having walked off a few seconds earlier. Actor placement
"Exposé" When Paulo and Nikki are reading the newspaper in the airport prior to their flight, the date in the newspaper is shown as Thursday, September 24, 2004, rather than September 22, the date of the plane crash. In addition, the Thursday of that week was actually the 23rd of September. Script coordinator Gregg Nations confirmed that this was a prop error that had been caught, was supposed to get fixed yet still ended up in the aired version of the episode. Props
In the airport flashback, Nikki and Paulo are having a toast. Paulo is just about to take a sip from his glass as he suddenly hears Shannon's voice. In the very next shot, Paulo is suddenly holding the glass away from his mouth, and more than half of the glass's content is already gone. Props
When Paolo goes into the Pearl and is forced to hide by the appearance of Ben and Juliet, the timeline of events is slightly off. By that point, the beechcraft has already been brought down by Boone, but it hasn't yet been moved off the entrance to the Pearl by Locke and Eko - as proven by the fact Sawyer being tended to in the Swan after returning from the other side of the Island is shown on one of the monitors. Therefore, anyone going down into it would have had to move the plane off it first, and then drag it back over when they left - which neither Ben, Juliet, Paolo, nor Tom, who Juliet mentions was there the other day, do. How the plane was then covering the hatch doors when Locke and Eko move it is unexplained. It also makes little sense why Ben and Juliet wouldn't have locked the doors after leaving - which they clearly didn't, since Paolo wasn't trapped inside. Timeline inconsistency
Shannon's hair is much longer in the episode. Hair and makeup
Neither Boone's hairstyle nor the color of his hair match his appearance in the pilot. Damon Lindelof and Carlton Cuse admitted that Ian Somerhalder is wearing a wig for this episode because they wouldn't ask him to cut his hair for a mere two days of shooting. (Official Lost Podcast transcript/March 26, 2007) Hair and makeup
During Nikki and Paulo's flashback of the crash scene, Locke, rather than the "gas man" extra, yelled "stay away from the gas". Dialogue
Also during the crash scene, Locke and another survivor can be briefly seen carrying the tourniquet man before Gary Troup gets sucked into the engine. In the shots that are recycled from "Pilot, Part 1", the Tourniquet Man is merely unshaven, but in the newly filmed footage that features Nikki, he clearly sports an actual beard (which can be also seen in a promotional photo). Hair and makeup
When Nikki is trying to find Paulo in the plane wreckage, she sees Jack near the water helping Claire. Seconds later, in the wide shot where she looks up at the wing, Jack is also visible near the plane and not with Claire. The shot was recycled from "Pilot, Part 1", with Nikki and an extra wreckage part added via greenscreen. However, the special effects crew forgot to digitally remove Jack from that shot. Editing, special effects, actor placement
When Jack is telling the survivors about the caves, he is also seen standing to the right of Hurley, near Nikki and Paulo. Editing, special effects, actor placement
Jack's speech doesn't match up completely with the version from "White Rabbit". While the omission of the drowned woman could simply be due to length (i.e. what we see is actually not the full speech, but just a montage), this still doesn't explain why a few sentences change order. Dialogue
While Hurley, Charlie and Sun are digging Paulo and Nikki's grave, Vincent runs off with the blanket that's covering their bodies. The camera then changes to Hurley, Sun and Charlie talking about Sawyer, and Charlie's confession to Sun about the kidnapping (see"The Long Con"). After she leaves, the camera switches back to Paulo and Nikki's 'corpses' and the blanket is back on them. Props
When Sawyer and Hurley bury Nikki and Paulo, Nikki's hands are together over her body. When Sawyer throws the diamonds in, her hands are by her side. They then return to the original position in the next shot. Actor placement
In Paulo's passport, the expression "REPÚBLICA FEDERATIVA DO BRASIL" is misspelled as "REPUBLICA FEDERATIVA DO BRAZIL". Props
"Left Behind" When Kate and Cassidy are in the bar having a drink, Cassidy is asking Kate a question and we see Kate playing with an empty glass. We then cut to a view of Kate face on, where she holds up the glass with a dark drink in it, and slugs it back in one go. Props
"One of Us" In the scene where Richard talks to Juliet in the airport, there is a shadow of the boom microphone on Richard's shoulder. Crew placement
When Juliet reads Rachel's cancer report that Ben gave her, the "sex" field reads "male" and not "female". This has been confirmed as a prop error by Gregg Nations Also the weight is almost certainly wrong and the data is heart-related rather than anything to do with cancer. Props
During the scene where Kate is reunited with Sawyer on the beach, Kate is holding a water bottle, but when she hugs Sawyer, it is gone. Then, when Sawyer says "What's she doing here" to Juliet, Kate can be seen holding the bottle once again. Props
When Claire is sick and Juliet offers the medication, we observe that it is night. However when Juliet goes to the tree that holds the medication it is suddenly day. Setting
Juliet refers to a man Sawyer allegedly "shot in cold blood" the day before he boarded Oceanic Flight 815. This seems to be referring to Frank Duckett, but it would contradict both Sawyer meeting Christian Shephard a week prior to the crash (as recounted by Sawyer in "Exodus, Part 1") and Sawyer spending three days in a police cell before being deported to the USA. Dialogue
After the Others witnessed the mid-air break-up of Oceanic Flight 815 and Ben sent Goodwin and Ethan off to their missions, he notices Juliet holding Carrie and concludes "So I guess I'm out of the book club". Following that, Juliet turns and wants to leave, but Ben keeps looking into her direction and calls her name twice until Juliet stops and turns around. However, in "A Tale of Two Cities" we saw Ben turning the other way while Juliet was walking toward a couple standing nearby and stopped, presumably to talk to them. Actor placement
When Juliet gets out of her bunk in the submarine, she is barefoot. She takes her bag and coat from the lower bunk, goes directly to the main room, and climbs the ladder. When she crawls out of the sub's hatch, she is wearing heels. Props
"Catch-22" The location where Hurley says "This is it" right before Jin finds the wire on the beach looks totally different from the location where Sayid originally found the wire back in "Solitary", and also from the location where Hurley found the wire in "Numbers" (as a matter of fact, those two locations were already inconsistent to begin with). This time, there is a crooked tree that was nowhere near the location of the wire in those earlier episodes. To make matters even worse, this is the same tree that was prominently featured throughout season 1 as one of the landmarks of the original beach camp near the crash site of the fuselage of Oceanic Flight 815 (comparison at Lost Virtual Tour). Setting
Desmond has a flash about capturing the parachutist. It plainly shows that Charlie was there in both instances (which the flash scene would have been impossible if Desmond had let Charlie take the arrow to the neck). However, this may be intentional if Desmond was seeing flashes from multiple potential futures at the same time; it is not clear yet what is and isn't possible in Desmond's flashes. Actor placement
"D.O.C." Sun takes a phone call over the bridge named "Han Gang Dae Kyo" on it. But there's no bridge like this in Korea, and It's not a large enough to call that "Dae Kyo" which means a very large bridge in Korean. Setting
In Sun's flashback where she meets Jin's father, Mr. Kwon's boat switches from being tied to the left side of the dock in the establishing shot to the right side in all subsequent shots. Also, when Sun approaches the boat, there is an orange marker buoy on the boat; in the shot where Mr. Kwon looks up to her, there is suddenly an additional blue marker buoy that was missing in all the previous shots. Setting
While Jin chases Mikhail through the brush, Mikhail is shown with a full head of hair. By the time Jin catches him, his hair has fallen back out again. Hair and makeup
After Mikhail says "Maybe a day and a half," he turns his head away from Charlie to look at Desmond. In the next shot, he is looking at Charlie and turns his head again. Actor placement
"The Man Behind the Curtain" It is shown that Ben was born on December 19, 32 miles outside of Portland, Oregon. The actors are not dressed for this kind of weather and appear to be hiking in the summer months. The average temperature in Oregon for December is 40F, far colder than depicted in this scene. Setting
"Greatest Hits" On the map the 'Looking glass' building is named 'hatch'. The other DHARMA buildings are called stations. The term hatch was used by the survivors for the first station they discovered 'The Swan'. Script coordinator Gregg Nations confirmed this as being an error [11]. Props
The writing of Charlie's letter changes every time when he writes down a new point. Some of the versions look very close, whereas others look drastically different (screencap). Yet another different prop for the letter was shown in a promotional image (screencap). Props
When Hurley walks away from the outrigger you can see a foot from a crew member on the left. Crew placement
"Through the Looking Glass" When the castaways leave their beach camp and start heading towards the radio tower, the walk towards the left along the coast line. In the next scene, they walk through a rocky area at the coast line, now heading towards the right. Setting, actor placement
The castaways are said to have only one rifle, regardless of the fact that two sniper rifles (G3/SG1 and SVD) were stored in the Swan and then hidden by Sawyer and haven't appeared since, and following the count given in "", there should be five weapons, two pistols, three rifles. Props, Plot
While Ben is talking to Mikhail via radio (~ 33. minute) you can see a pipeline on a hill to the left of Ben's head. Setting
After Mikhail is instructed by Ben to kill Bonnie and Greta, his real eye can be seen moving underneath the makeup. Hair and makeup
When Bonnie and Greta are interrogating Charlie, right after he says "lets call Ben" there is blood all over his right cheek. In the next shot the blood is gone despite him being tied up Hair and makeup
When Locke is in the pit, close-ups show him with the pistol away from his forehead. However, when zoomed out, he is shown as having the gun to his forehead. Editing
During the scene at the stream with Kate and Sawyer talking there is a minor blooper. Kate has something in her hair (a small piece of branch). It cuts to Sawyer and back to her when it's not there and then back to Sawyer and then to Kate again where it appears for the rest of the scene Hair and makeup
If you count how many castaways are walking to the radio tower, there are only 27 including Ben, Alex, Karl, Naomi and Rousseau, when there really should be at least 40. Actor placement
Before Jason trips down by Sayid, it is visible that he is not being portrayed by Ariston Green but by stunt double Nathan Siebring. Cast
The equipment inside the Looking Glass is on the left side of the porthole, but after the porthole is broken, the equipment is on the right side. Props
Charlie does the sign of the cross improperly with his left hand. This may have resulted from the scene being inversed. Acting, editing
While it's clear that Charlie sacrificed himself because he did not want to risk changing the future by surviving, the compartment would not actually fill up with water all the way. If we presume that the damage caused by the explosion is limited to the window, and the compartment remains otherwise air-tight, the water would fill up the room only to the top of the window. After the water reaches the top of the window the remaining air cannot be displaced, and water inflow stops. Ignoring Physics

Season 4[]

Episode Blooper Type
"The Beginning of the End" When Randy is filming Hurley's car crash, his camera has its cap still on. Props
"Confirmed Dead" After Miles has "talked" to the ghost, the contents and the frames of the photos on the wall are different. Prop, Setting
Sawyer tells Locke that the Barracks are due south, when it is impossible since the survivors are currently on the southern end of the Island since the cockpit is not too far from the beach camp. Plot
"The Economist" When Sayid shoots Mr. Avellino in the golf course, objects around the area are casting shadows. At the next overhead shot, all the shadows are gone. Setting
The menu in the restaurant where Sayid meets Elsa features numerous spelling errors Props
When Elsa first meets Sayid, she asks "Wohin möchten Sie gehen?" which is the literal translation of "Where do you want to go?" and, while grammatically correct, is very unidiomatic in German and would in this context be understood as "Where do you want to walk?". As Elsa's otherwise good accent indicates that she's been living in Germany for quite a while, she would naturally say something like "Wohin möchten Sie?" (literally: "Where to do you want?") or "Wo möchten Sie denn hin?" and not think the sentence in English and then translate. Script
In a scene that supposedly takes place in Berlin, there is a traffic sign in the foreground. Besides being in a different graphical style than German traffic signs, the sign makes no sense: It warns about pedestrians crossing the street and then limits this warning to certain times. Residents with a special parking permit are completly exempt from watching out for pedestrians. Setting, Props
"Ji Yeon" In Jin's flashback, the establishing shot of the Korean city disappears in later scenes Visual effects
"Meet Kevin Johnson" Before boarding the freighter, Minkowski tells Michael to report himself to Naomi first. However, it can be seen from a distance that the name "Kevin Johnson" on Naomi's crew list has already been signed. Also, the crew list has Keamy's full name listed as "J.D. Keamy". Props
In "Catch-22", Naomi's helicopter crashes in the water, but in the subsequent episodes the freighter crew still has a helicopter, which implies that they had two before Naomi crashed. However, in this episode, in the scene where Naomi is arguing with Frank Lapidus, only one helicopter is present on the pad. Props, Plot
The water bottle in Karl's hand in the final scene of "Meet Kevin Johnson" has only one hole. The bullet entered the bottle, but did not exit. Apparently, bullets can be made to be water-soluble. Props, Visual effects, Ignoring Physics
Hearing protection is visible on Blake Bashoff during a sequence involving pyrotechnics. Visual effects
"The Shape of Things to Come" There is an attached shirt rack concealing the hieroglyph door in this episode, rather than the storage shelving shown in that same position in "The Economist". Props, Setting
When Ben appears in the desert for the first time, he appears laid on his back on hard cracked ground. In the next shot he is shown raising himself up off a completely sandy surface. Setting
Many of the Arabic scripts (including the news broadcast and the signs in Tunisia and Iraq) are erroneous. The letters are not connected as they should be (i.e. as if they did not form words). And even if they were connected, many of them still would not form proper words. Sayid's name, for example, is written as: س ي د ج ا ر ه which would read سيد جاره (Sayyid Jareh) when connected. This is not how Sayid's name is spelled though (سعيد جراح). Script, Props, Setting
When Jerome is shot and killed, no blood or bullet hole is visible on him. Hair And Makeup
In "The Economist" the ceiling of the small corridor between the bookcase and Ben's secret room showed no signs of a gap where the door lowered preventing Sawyer from passing to follow Ben. Props, Setting
"Something Nice Back Home" In Juliet's list of medical supplies, "forceps" is incorrectly spelled "forcepts." "Gauze pads" also appears to be incorrectly spelled as "gause pads." Props
"Hard-wired" smoke detectors (as used in a hospital) do not have an on board battery. They are attached to a central electrical supply and linked together. Any malfunctioning of a commercial smoke alarm would be indicated at a central control panel, not by a beeping in the unit itself. Props
Jack's lab coat spells his last name as "SHEPARD". However, the door to his office and his name in the lobby of the St. Sebastian Medical Center where he works spells it "SHEPHARD". Props
When Jack is first seen stumbling out of his tent in the episode's beginning, there is a thin trail of sweat on his shirt, running down from the neckline. However, when the camera flashes back to him not more than seconds later, the entire top of his shirt is soaked. Hair and Makeup
The examination table that Sun shows Jin in the Staff medical hatch is completely different from the one on which both Sun and Claire were examined previously. Props
"Cabin Fever" The single of "Everyday" by Buddy Holly and the Crickets was recorded in May of 1957 and not released until September 1957 (source: [12][13]), over one year after Locke's birthdate of May 30, 1956. It would be impossible for Emily to have been playing this record the night of John's birth. (source: [14]) Audio
The closed captioning incorrectly stated the song playing at the beginning was "Everyday" by Don McLean, instead of Buddy Holly, which would have put the time frame circa 1974. Captioning
When Alpert is placing the items on the table for young Locke to choose ones which belong to him, the compass changes rotation. Props
When Alpert puts the first item down, there's something resembling a white coaster on the table. When he presents the second item, the white coaster is suddenly gone. Props
When Locke's Grandmother goes to light up in the hospital you can see lipstick marks on both ends of cigarette. Props
While talking to Hurley and Ben about the DHARMA Initiative, Locke is seen hacking away at plants with a machete. When Locke takes his backpack off, the blade is in it and not in his hand. Props
Right after Locke departs from Hurley and Ben to go into the cabin, one can see the shadow of Hurley's arm holding the torch appear on Ben's shirt. AS the camera zooms in, Huley moves his arm, perhaps to cover the fact that the light isn't coming from the torch itself. (The torch wouldn't cast a shadow if the fire atop it were creating the light.) Props, Visual effects
"There's No Place Like Home, Part 1" In the shot of the aircraft's ramp being pulled out, Jack, Hurley and Sun's family members can be seen standing at the end of the ramp surrounded by guards. In the next shot, they are suddenly several yards further back, surrounded by no one. Cast, Setting

As Hurley brings Sayid into his family hug, he has his right arm around his shoulder to begin with, then as it flicks to the next scene, the other arm is around Sayid. Cast

In the scene where Kate first notices the bloodstain on Jack's shirt, Jack's shirt is free of blood until after it is explicitly shown. Hair And Makeup
"There's No Place Like Home, Parts 2 & 3" When Ben trips and rolls down the hill, it is visible in the first two shots that he is not being portrayed by Michael Emerson but by a stunt double. Cast
The final flash-forward scene from "Through the Looking Glass, Part 1" is slightly reedited in the "previously on Lost" segment at the beginning of the episode, adding a new shot of Kate's car driving off which then leads into the first scene of this episode. However, "Through the Looking Glass, Part 1" ended with Jack turning around and walking towards his car, while in this episode, he is still watching Kate's car drive off when Kate stops and changes to reverse gear. Script, Setting, Cast
Richard Alpert is shown lowering the gun after shooting Keamy in the back. After a brief reaction shot from Sayid, Richard is again shown lowering the gun. Script, Cast
When the helicopter first takes off from the Island, the right leg of the stunt pilot can be seen. He is wearing shorts unlike Frank, who is wearing pants throughout the episode. Crew
When the helicopter takes off, there is a clear shot of its underside. There is no fuel leakage from the gunshot hole. Once they are above the water, it starts to leak. Ignoring Physics
Keamy says a signal from his heart monitor will detonate the explosives on the boat as soon as no heartbeat is detected, but no radio transmitter is capable of broadcasting a signal from deep underground. Ignoring Physics
Frank's helicopter is shown hitting the water surface with a high forward speed, then tilting forward and breaking into pieces. Actually, a helicopter that runs out of fuel (or somehow loses power) can still perform a controlled descent using autorotation, so it is very unlikely that Frank's helicopter would have crashed the way it did. Ignoring Physics
When Ben climbs down the ladder to the icy cavern and falls, the crowbar lands behind him. In the next shot, it is in front of him, slightly under his knee. Props
When Hurley takes Aaron from Kate on the raft, the first shot shows him with a life jacket; in the next shot, he is not wearing a life jacket. Props, Hair And Makeup
When the Oceanic Six arrive on the Island of Sumba, a camera operator is visible at the bottom right of the screen when Sayid rows the raft ashore. Crew Placement
Frank is shown applying tape over the holes in the fuselage of the helicopter to patch the fuel leak. The surface of the fuselage is almost certainly not the surface of the fuel tank. Props
If freezing the battery attached to the C4 stopped the flow of current without causing an explosion and stopped the explosives from detonating when Keamy died, then the battery, wires, detonators, etc., all could have been disconnected while it was frozen. Ignoring Physics
When Daniel returns to the island after dropping off the first group on the freighter, he tells Juliet that the engine had been fixed and the boat was moving closer to shore. However, in There's No Place Like Home, Part 1 we saw him drop the people off at the freighter and turn around immediately to return to the island. He wouldn't have any way of knowing this information. Dialogue
Frank tells the rafting main characters that they would reach the island of Sumba 8 or 9 hours after beginning their trip from the Searcher. A time lapse skips ahead from the time of departure and arrival, however, the time of day doesn't seem to change at all, as the sun is shining just as bright at both times. It would be more believable for the trip to have taken one or two hours, but at 8 or 9 hours' difference in time, the characters arrival would have been closer to dusk. Setting

Season 5[]

Episode Blooper Type
"The Little Prince" During the first few seconds of the scene when Locke, Sawyer, Juliet, etc are rowing in the boat they found on the beach, a splash can be seen along the bottom of the screen which clearly comes from the camera boat. Crew Placement
When the group from the boat land on the beach, there are a few strikes of lightning from the storm in the distance. The thunder is heard at precisely the same moment as the lightning strikes, despite the storm being at least a couple of miles away. In reality, the thunder would be heard several seconds after the lightning. Ignoring Physics
When Kate, Sun, Jack, Ben and Sayid speak at the marina, a line of Kate's varies in the different flashbacks of each character. Sometimes she says "you guys are crazy," and other times she says "you are all crazy." Dialogue
"316" The flight attendant of flight 316 is wearing a staff badge showing the name "Ruga Magge". However, during the end credits, she is listed as Rupa Krishnavani. Props, credits
"The Life and Death of Jeremy Bentham" When John wakes up in the hospital after having his broken leg fixed, he does not recognize Charles Widmore, despite the fact that he'd seen a video and read a detailed file on Widmore in "The Other Woman". Plot
"LaFleur" Jin has a goatee, face bruises, and short hair at the end of "This Place Is Death". However, at the beginning of this episode, which is a continuation of the last scene of "This Place Is Death", his goatee is drastically shorter, his bruises have nearly healed, and his hair is longer. Props
Charlotte is seen as a child on the island in 1974. However, in Season 4, Ben recounted much of the information he knew about Charlotte, including the fact that she was born on July 2, 1979. Timeline Inconsistencies
"Whatever Happened, Happened" At the end of "He's Our You" young Ben Linus is shot from close-range by Sayid with what appears to be a 9mm handgun. The bullet wound shown in this episode is on the left side of Ben's chest, over his heart (a shot that would almost certainly kill someone his size). In this episode, however, when Jin rolls Ben over, the bullet wound is on the right side of Ben's chest. Plot
"Some Like It Hoth" The DHARMA beer can that Kate drinks from has a pop top. In 1977, beer cans had pull tabs. Props
"The Variable" Again, Charlotte is seen as a child on the island, this time in 1977. However, as mentioned above, Ben stated that her birthday was July 2, 1979 in Season 4. Timeline Inconsistencies
"Follow the Leader" Eloise Hawking is shown to be pregnant with her future son Daniel Faraday in the year 1977. However, it is revealed in "The Constant" that Daniel was a tenured professor at Oxford in 1996, meaning that he was 19 years of age at most. Daniel does indicate several times that he was the youngest PhD at Oxford, and his extremely high intelligence might make such a scenario possible, but it is still highly unlikely. Timeline Inconsistencies
"The Incident, Parts 1 & 2" The moment where Andy is shot and killed by Jack has shown twice. Editing
In a flashback, Mr. Springer calls 10-year-old Kate "Diane Austen's girl". This implies Diane was still married to Sam. But they divorced when she was five. Timeline Inconsistencies
In a flashback, Jin and Sun marry wearing a conventional western groom's suit and bridal dress. However, in "D.O.C.", their wedding photograph shows them wearing entirely different clothing of a style that appears to be traditional Korean. [15] Costuming

Season 6[]

Episode Blooper Type
"LA X, Parts 1 & 2" Oceanic Flight 815 is correctly shown to be a Boeing 777 as the plane approaches the runway. However, the sequence in which the landing gear touches down shows four pairs of wheels on the main landing gear, whereas a Boeing 777 has six pairs of wheels. Moreover, the plane approaching the gate has four engines (you can see the engine shadows). The actual plane at the gate is an Airbus A340. Props
Sayid's passport states that he was born on April 25, 1972, but he previously told Ben that he was 23 at the beginning of the Gulf War in 1990 ("One of Them"), which would mean that he was born in 1967. Timeline Inconsistencies; Props
"What Kate Does" The date in Claire's sonogram shows a date of "10-22-2004" when it should be "09-22-2004". This was confirmed as an error by Gregg Nations, and in the February 22, 2010 official podcast by Damon Lindelof and Carlton Cuse Props
During the scene where Jack inspects Sayid's gunshot wound, the wound was on Sayid's left side. However, when Sayid was shot in "The Incident, Parts 1 & 2", he was shot on the right side of his stomach. Plot
"The Substitute" The ceiling of the studio used for the cave is clearly seen right after the Man in Black says, "That, James, is why you're all here." There is a blinking red light as well. Setting
Ilana's group comes from the east when they arrive at the beach camp to bury Locke's body. However as was seen in "Live Together, Die Alone", the Statue of Tawaret is on the northwest end of the coast. Plot
"Lighthouse" There is a visual difference between the first floor of the lighthouse (built as a prop) and the rest of the building (created as CGI). When Hugo and Jack get close to the lighthouse's door you can see their relatively long shadows, implying it is not near noon, compared to one cast by the lighthouse which should be much longer. Setting; Visual effects
"Sundown" The same background actors who are seen guarding the Temple door at the very start of the attack are seen with the Man in Black after the massacre is over. Also, some background actors who leave the Temple earlier with Cindy and the kids are seen in the Temple during the massacre and are killed. Plot
The SUV which Sayid is about to get into before Omar takes him to Keamy has the same license plate as Jack's Bronco (2SAQ321). Props
"Dr. Linus" Hurley comments that Richard looks the same as he did 30 years ago, yet the two characters had not met prior to this episode. Plot
When Jack, Hurley and Richard come back from the Black Rock and arrive at the beach camp, they are coming from the left. However, in "Exodus, Part 2", Rousseau leads the group to the Black Rock by leaving the beach camp on the right side, heading counter-clockwise around the Island's shoreline. Plot
"Recon" At the police station, Sawyer uses Microsoft Word 2007, yet the flash-sideways timeline is set in 2004. Props
The tail number for Ajira Flight 316 was N25705 when it originally appeared in the episode "316". However, in this episode, the same plane bears the designation N9748C. Props
"Ab Aeterno" The two hundred foot wave was strong enough to sweep the Black Rock into the stone Statue of Tawaret, destroying it, and cause the vessel's wreck in the middle of the jungle, yet apparently caused little other damage where one would expect uprooted trees, flooding, etc., nor significant damage to the wooden vessel. Plot
There are continuity errors regarding Ilana's bruises and bandages and the overall lighting in the scene in which she and Jacob talk in the hospital. This is due to footage from "The Incident, Part 1" being used alongside new footage. Makeup & Costuming; Lighting
"The Package" The scene when Sayid finds Jin in the flash-sideways is considerably different than the one seen in "Sundown", most notably when Sayid asks, "Who are you?" and Jin responds, "No English." Dialogue
"Everybody Loves Hugo" The weather in Ilana's death scene is inconsistent, especially when it is raining in the shots from behind Richard's back. This was confirmed on Jorge Garcia's podcast, Geronimo Jack's Beard. Lighting
"The Last Recruit" The EMT shows ignorance of Locke paraplegia, yet just seconds after says that he thinks his wheelchair saved his life. Plot
The EMT mentions that Locke's wheelchair was "smashed to pieces," yet in "Everybody Loves Hugo", the wheelchair is shown intact and standing upright after the accident. Plot
It is not possible that Sun and Jin would be arriving at the ER at the same moment as John Locke, as the events of "The Package" take place just a day or two after the arrival of Oceanic 815, whereas Desmond's attack on Locke took place soon after Desmond told Hurley in "Everybody Loves Hugo" that it had been a week since their flight. Although, this could be explained by the fact that there is no time in the flash-sideways world, as explained later by Christian Timeline Inconsistencies; Plot
After the bombing at the beach, Jack has blood on his neck, but after Locke carries Jack inland, there is almost no blood there. Makeup
"Across the Sea" When the skeletons of Adam and Eve were first discovered in "House of the Rising Sun", they were separated and not lying side-by-side, as we see Jacob placing the bodies in this episode. This continuity error first appeared in "Lighthouse" and was carried over into this episode. Also, it would be impossible for clothes and skeletons to be recognizable after more than 2000 years of decomposition, their conditions are almost the same as Yemi, who had been dead for less than 3 years. In "House of the Rising Sun" Jack guessed the remains must have been dead 40-50 years, which executive producers Damon Lindelof and Carlton Cuse joking said that Jack "is not really an expert in carbon dating." Timeline inconsistencies; Plot; Props
"What They Died For" After Jack says to Locke "Don't tell him that" and laughs, he breaks the fourth wall for a few seconds by looking directly at the camera. Breaking the the fourth wall
"The New Man in Charge" Glen's DHARMA jumpsuit is clearly showing the name "Glen", with a single n. However, during the end credits, he is listed as Glenn. Credits


Title Sequence[]

As the Series' title "LOST" moves toward the camera and into focus, the edge of the center of the letter "S" flickers black momentarily. This is due to incomplete skinning of the three-dimensional frame of the word. To date, the error has not been fixed and has appeared in every episode.


Several small box and container props have been identified by fans as being re-used in the filming of episodes in disparate locations. These reuses are likely unintentional, and thus may be interpreted as a type of minor continuity error.

Accidental Swan Logos[]

Since the introduction of the Swan and DHARMA Initiative, the Swan logo has been used several times interchangeably with the main DHARMA logo. This has resulted in countless errors where jumpsuits, food products and other DHARMA items have been branded with the Swan logo despite the fact that they are in no way related to the Swan.

Debunked errors[]

  • In "A Tale of Two Cities", at the final zoom out before the "LOST" titles we see smoke rising out of both sides of the Island where the halves of the plane landed, yet in "The Other 48 Days" we saw no smoke from the tail section.
  • DEBUNKED: The tail section in the other 48 landed on the water, yet some of it landed in the jungle which we don't see in "The Other 48 Days".
  • DEBUNKED: In "D.O.C.", we found out that Mikhail was actually still alive. So it wasn't really an error but could rather be considered a hint.
  • In "The Glass Ballerina", when Jin goes to visit Jae Lee, he exits the elevator on the second floor (as evident by a number plate saying "2"). When he confronts Jae, however, they suddenly appear to be on the 15th floor (as evident by a door plate saying "1516").
  • DEBUNKED: This isn't necessarily an error; it could cut to Jin arriving on the 15th floor, possibly omitting him taking the elevator or the stairs, due to lack of time.

See also[]

External links[]