Frov

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)

Frov

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)

Frov

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)

Frov