Factual error: In at least two scenes, cars from the 1990's can be seen, despite the fact that the film took place two decades earlier. (00:50:00)
Continuity mistake: In the scene where Clarence is cleaning Alabama's wounds outside the airport (after she gets beaten up by and subsequently kills her would-be hitman), a large gaping cut seen on the left side of her face in one scene is gone in the next and does not reappear.
Revealing mistake: The oil lamp carried by Mary when she first finds Colin has a flame that never flickers, and is likely an electric lamp.
Continuity mistake: Just after Huck (Elijah Wood) hides in the piano, Mary Jane comes in to visit her dead brother in his coffin before they bury him. She sets down her candle and in the next shot a chair suddenly appears beside her to sit down.
Continuity mistake: When Darian hits Cliff over the back with the attic pole, the brass hook disappears between strikes.
Revealing mistake: In the final scene when Annie and Sam are exiting the observation deck coming towards the elevators, the New York skyline backdrop which should be visible behind them is missing, and the entire sound stage wall can be seen beyond the observation deck safety railings instead. 'Although the exterior and lobby of the Empire State Building, 350 Fifth Avenue at 34th Street, are the real thing, a slightly larger replica of the Observation Deck was built in a hangar at Sand Point Naval Base on Puget Sound just northeast of - where else? - Seattle.' https://www.movie-locations.com/movies/s/Sleepless-In-Seattle.php. (01:39:35)
Continuity mistake: There's a scene where Oldman is talking to his wife (Anabella Sciorra) in the kitchen. He is sitting at the table on which there's a candle. In one scene the candle is lit, in the next it has gone out. It also switched between flickering and staying still.
Factual error: Throughout the movie, you see Carlito using a Beretta 92F semi-automatic pistol. The movie is set in 1975, that model pistol wasn't introduced until the mid 80s.
Factual error: When the camera took a shot on a train coming to a station in Czechoslovakia, you can see electric cables above the train tracks. There was no such thing in Czechoslovakia as electrified trains in the 1940's. The electrification started in the 1950's. (00:01:05)
Factual error: When Mr. Gaunt puts the jacket on Hugh, he says it's 1955 all over again. The flashback occurs and Jerry Lee Lewis' "Great Balls of Fire" is playing on the car stereo. However, "Great Balls of Fire" wasn't released until 1957.
Factual error: After showing a picture from 1955 when he was eight, the narrator (Shayne) states that he was fifteen by 1962. The story begins with his mother getting fired from her job at a potato chip factory and making the decision that night to move the next morning. The family moves from L.A. to Kingston, Idaho. Shayne's mother Fran tells Mr. Moon that they (she and whatever work her kids do for him around the house) want paid "minimum wage plus 10%" to pay for the land and when she gets hired at the bowling alley she is told the job pays "minimum wage" (plus any tips, which "ain't much"). Idaho did not establish a minimum wage until 1963, a year (or some months) later. The narrator even asserted at the beginning "This is a true story. It really happened to me." (00:20:03 - 00:23:47)
Continuity mistake: When Smith and Connor arrive at the Nakamoto tower and are exiting the elevator on the 46 th floor, you can see in several shots that Smith's suit is wet on the shoulders. However as he was going up the elevator the suit wasn't wet at all and even during the whole scene in the 46th floor, the suit changes from wet to dry as angles change.
Continuity mistake: The bullets that Leary removes from the keychain at the banquet are in a different position than they were when he put them in.
Suggested correction: We see him put the bullets in the rabbit's foot at least a day before the assassination attempt. Plenty of time for him to open the keychain simply to check and make sure he is fully prepared. Which does fall in line with his meticulous nature.
Factual error: During one of the scenes, you see a guy on a motorcycle wearing a Misfits jacket. The movie takes place in '76, but the Misfits didn't form until '77.
Continuity mistake: When Sam is making grilled cheese sandwiches with the ironing board and iron, he finishes one sandwich and places it on top of another on the side table. After Joon's explanation of cheese and culture the camera cuts back to Sam placing another finished sandwich on the side table on the same place that he placed the first but there is only one sandwich there where there should be two.
Continuity mistake: When Mike Rogers's daughter is sleeping on his lap and his wife comes to ask him if he's coming to bed, in one shot the daughter is way up sleeping on his shoulder and in another, back down on his lap.
Continuity mistake: After 70 days in the Andes, Nando has not grown a beard. Two days later, when they come with the choppers, he's managed to grow quite a nice one.
Suggested correction: It's possible that Nando continued shaving (offscreen) while they were living at the plane, but gave it up (or left his razor behind) during the trek out of the mountains. In real life, some of the survivors did shave while in the mountains.
Continuity mistake: When Jane and Calogero first meet in front of the school, a couple walk down the stairs and in the next shot the same couple are back on top of the stairs.
Continuity mistake: When Jesse jumps into the pool to ride on Willy's back for the first time he is fully submerged. However, while riding the whale, his hair is dry.
Continuity mistake: In the scene where Gilbert and his buddy's are eating in the cafe. The first time you see the undertakers bowl of cereal, it keeps changing from full to empty several times.