Revealing mistake: How on Earth can Selby get those skin tight T-shirts over that huge cast on her arm? They cannot possibly stretch any more than they already are - look at the scene where she and Eileen are checking the mail. There is no way that sleeve would fit over the cast without ripping! It is well beyond the capacity of that tight T-shirt to stretch to that extent! Obviously Christina Ricci had the cast fitted after she was in costume.
Other mistake: When Johnny and Mark save Denny from Chris R., they claim they are taking Chris R. to the police station. However, they re-appear in the scene almost immediately after (within 2 minutes of screentime, which is meant to be in real-time), with their having been obviously nowhere near enough time for them to have taken Chris R. to the police and done the appropriate interviews/paperwork.
Factual error: When the Ranger trainees first meet Samuel L. Jackson, he's wearing the rank of a Specialist on his collars even though he's a Master Sergeant. Title 18, Chapter 33 of the US code prevents the unauthorized wear of a military uniform (among other things), however this does not automatically correct the mistake since a common misconception is that one slight alteration is sufficient to make the uniform legal. Having the wrong rank on is too obvious of an alteration, especially for anybody who has spent more than a day in or around the Army and would still be punishable by law, if he was dressed in an attempt to fool your average citizen outside of a movie.
Factual error: When we see the United States flag, it is the wrong flag. It has 43 stars, something the flag did not have until 1891.
Continuity mistake: In the scene where Stanley and Zero are digging to find the chest toward the end of the movie, the background behind them is just a dirt wall. In a following shot upon discovering the box, there are stairs that lead to the hole. In the next shot, these stairs are gone again and it's just the hole again. (01:38:05)
Continuity mistake: After Sarah has called at Harry's office, Harry prepares to open his office door to see her out. The camera cuts back to Sarah for a moment, then back to the camera angle on Harry as she walks to the door. In that short space of time, the sliding cupboard doors have changed their configuration, and the blinds in the upper left of the frame have partially closed. (00:18:45)
Factual error: In the scene at the beginning of the movie as the 3 youths walk up the street, you can see current MA license plates, although the action should have taken place many years earlier. (00:01:30 - 00:05:50)
Continuity mistake: At the hotel he is staying at with Belinda, there is a side shot of Mahowny walking down an escalator. Going up are 2 men. There is then a shot from the bottom of the escalator and the 2 men have been replaced by 2 different men and a woman. (00:41:25)
Continuity mistake: In the scene where Moe shows the Tenor brothers their apartment, the star on the door is gold. Later when Morty is riding around on the scooter, you can see the star on their door has changed to silver. It changes many more times throughout the movie.
Visible crew/equipment: In the closeup of Evie when she is holding a spoon under her eyes, you can see the boom mic reflected in each spoon. (01:04:15)
Continuity mistake: When Chris runs out of the door to the Hollywood film studio following Annie she is barefoot. When the shot changes and they emerge into the alleyway behind the studio they are both wearing slippers.
Factual error: In the final race, they are able to slow down and stop two extremely powerful machines, travelling at well over 100 miles per hour, on a dirt road, in a very short distance. In reality, they would have gone through the wooden arch over the road, through the white fence, and ended up halfway up the hill in the background, amongst the horses.
Continuity mistake: In the first race, the Supra crashes down after jumping the bridge, and a side shot shows that the Supra's rear wheels have changed from the expensive chrome items to the standard Supra wheels. (00:12:00)
Factual error: Sarah Polley is dying of cancer. She's not told anyone, and the film is about completing her list of things to do before she dies. There's a scene where she's talking about children with her neighbour, a nurse, the woman who she eventually 'sets up' to replace her, to look after her husband and children, when she's died. The nurse refers to a truamatic incident having nursed Siamese twins in hospital, who both die. She describes how one died before the other -the boy, then the girl. This is medically impossible, as Siamese twins are always the same gender.
Revealing mistake: Near the end of the movie, after Jude Law has been shot, he is lying on his back with Nicole Kidman leaning over his face. In the shot looking up at Kidman past Law's left ear, you can see the webbing for Law's wig on his left temple.
Continuity mistake: The two fighter aircraft that took off from the carrier were unarmed. Later shots showed the planes armed to the teeth. (01:33:25 - 01:38:10)
Factual error: In the shot of the infield at the Saratoga racetrack several Canada geese are shown landing. However, the calls inserted on the soundtrack are the quacks of mallard ducks not the honks of Canada geese.
Visible crew/equipment: When Susan tries on a hat while the couple are shopping in the island town, you can see the cameraman in her mirrored shades. (00:06:00)
Continuity mistake: When Maria and her husband are at the cemetary, she says Yolanda died at 33. But a few shots earlier, Yolanda's tombstone read "1960-1987".
Continuity mistake: In the last scene Gareth Gates was a clone but he had a belly button and the clones didn't have them.