Other mistake: At the beginning of the film, when the door lock is being picked, it is the deadbolt that is being picked. When the door opens you can see that there is no space for a deadbolt in the door frame. (00:06:40)
Factual error: When the police are looking at the reflection of a neon sign in the glasses in the picture of the girl, the letters are reversed as you might expect. But the sign is on the glass front wall of the shop, facing the outside. Since the photo was taken inside the shop, the inside view of that sign would have already been reversed, and the reflection should have been the right way round. (00:35:15 - 00:39:40)
Continuity mistake: When two cops let themselves into Spader's apartment, as they approach the door you can see that the door has an old style lock, sometimes called a lever lock. As they go to pick open the lock the close-up shows a different lock, a pin type deadbolt on a different color metal plate. When the door opens it is back to the lever type lock and a shiny metal plate. (01:08:50)
Continuity mistake: In the scene where James Spader meets Keanu Reeves in the graveyard, we first see a Ford Taurus taxi driving through the gates, but when Spader gets out, the taxi is now a Chevy Caprice.
Continuity mistake: There is a scene during the cops' frantic search for the first missing girl where a red-headed lady cop is sitting at a desk with a computer screen. On the screen, however, is the picture of the SECOND girl, not the first one. The picture of the second girl hasn't even been sent to them yet.
Continuity mistake: In the scene where James Spader and another cop are at the Vietnamese restaurant, there is a front shot of the cop putting food in his mouth with some chopsticks, then the camera cuts to a side angle shot and the chopsticks are nowhere near his mouth.
Continuity mistake: When Keanu is burning and jumps out of the window, he dies when he land in the water. Then when James looks at him, he is floating. Dead bodies do not float until after 2-3 days when the body swell.
Continuity mistake: During the escape from the building he killed the second girl in, Keanu Reeves smashes a car window with a toilet bowl. In the next scenes (while being chased by the police) the car has no smashed window anymore.
Continuity mistake: The cop is seen throughout the movie using an Ericsson phone, but when he calls the other cop so the call can be traced, he is using a Nokia. There is no evidence to suggest that he already had a Nokia before being given the Ericsson.
