Visible crew/equipment: In the beginning narrative, when Madeline is telling the Tiger off, you can see the carabiner holding the cage shut. (00:03:05)
Factual error: When Ratcher's F16 has a system failure, he reports that both his engines are out, but F16s are single engine aircraft.
Other mistake: When a Japanese newspaper is shown publicizing Jackie's performance, the headline above the photo actually reported that the Japanese budget had been approved by parliament.
Visible crew/equipment: In scene where Chris is arguing with the cops look very closely in the window of the car. The boom mic, camera, and crew are all visible.
Continuity mistake: First, we see Mr. Renaldi put both arms above his head while lying on the bed. Then in the next shot, he has them both down. His arm changes continue for the next two shots. (00:34:10)
Continuity mistake: In the scene where the boys are fighting in front of the "Avalanche" ride which Medusa has sped up, Amanda hits the emergency stop button and accidently stops the ride upside down. In the very next shot it shows one of the boys fighting in front of the ride, and the ride is now moving.
Factual error: There is a scene where the guy takes a date whale watching in Boston Harbor. There are no whales in Boston Harbor, it's at least an hour and a half trip out to go see whales from Boston.
Factual error: When testing the new phone installation, the engineer only dialled the number, and not the area code, as you have to do on a mobile phone.
Revealing mistake: You can tell all shots in the parallel world where there is writing visible are simply regular shots being reversed because Molly Ringwald's watch and ring, which she wears on her left arm and hand, suddenly are on her right arm and hand. Especially obvious in the scene where she goes over work papers with Sandy.
Continuity mistake: While standing in the water, the guys' bong jumps from hand to hand between the three of them without being passed.
Other mistake: When Jude Law and the police officer are walking to the officer's car, Jude asks the officer if he is married. Why is it he asks this? Earlier on in the film, at the police station, the officer told Jude that his wife gave him that very same necklace.
Continuity mistake: When the movie first begins, Jan is talking to radio talk show host Howie Carr, if you look really carefully at one of the shots, Howie has a pen in his hand that he is holding steady. In the next shot, he is twirling the pen in his hand. The next shot shows the pen steady again.
Continuity mistake: At the beginning of the film, Bill is shown coughing up the white gloves that had been stuffed completely in his mouth. However, later in the film, Cobb does not completely stuff the gloves in Bill's mouth.
Factual error: Peter McCabe escapes the operating room partly by turning his oxygen supply into a flamethrower. 100% oxygen makes everything extremely flammable, but it cannot be lit like a flamethrower.
Visible crew/equipment: When the ambulances and fire trucks show up at the building where the money was dropped off, the camera pans up the side of the closest ambulance and you can see the camera rig reflected in the windows. (00:34:55)
Continuity mistake: When Karin takes the gun up to her face to shoot herself, she takes it up to her left ear, but in the next shot the gun is at her right ear.
Continuity mistake: As Buddy and the kid pull away in the car for the first time, Buddy is staring out the right side of the car. The shot cuts to a different angle and he's looking more toward the left.
Factual error: When Vic is beginning to fall in love with Louisa, he stays up one night reading her novel-in-progress. However, Louisa is Spanish, and it's clear from her accent that her native language is Spanish, and writers very very rarely would deliberately choose to write in their second language when they could write in their first language - so her manuscript is almost certainly in Spanish. And it's extremely unlikely that Vic speaks Spanish: he shows no signs of speaking Spanish; his character is not that bright and not that well-educated; and even if he learned it in school he's been out of it for many years and wouldn't be able to read it at that time. Even if Louisa had chosen to have her work translated so it could be read more widely, she was in the process of writing it; translation is a long, expensive, and involved process and it wouldn't have been done while the work was still being written, as we have already learned it is. Therefore, Vic would have been unable to read Louisa's work.
Other mistake: There's a scene where James films his and Veronica's amorous activities for use as Shelmikedmu mating ritual videos. While she is dancing, we see him slip behind a curtain to turn on the camera. Later on, we see the footage being played on a store's display TV's. Much of the footage shown is of her dancing BEFORE he turned on the hidden camera. And because of the angle of the shot, you can see that it wasn't taken by a different camera.
Continuity mistake: In the scene where Richie is running away from the gaurds he dives over the platform and knocks over the statue with his foot, but when the other gaurds go to jump over it, the statue reapears.