Continuity mistake: When Nicholas Cage is being escorted to fetch the roll of film from his car, there are a few scenes where the accountant is holding a gun to Nicholas's head. When the camera is directed at the accountant, two hands can be seen grasping the gun, but when the camera is facing Mr Cage, initially there are two hands but after the next switchback there only appears to be the one! (01:20:50)
Continuity mistake: When Nick Cage picks his daughter up to stop her crying at the beginning of the movie, he rests her head on his right shoulder. But when he turns around to tell his wife that he loves her, her head is now resting on his left shoulder. (00:06:10)
Continuity mistake: After Machine cuts Max's throat, Welles runs toward him and is thrown down by Machine. Then the shot cuts to Poole (Gandolfini) kicking Welles with Machine running up. Then a shot or two later when Machine and Poole are beating Welles it cuts and Poole is kicking Welles and Machine is not around. (01:22:10)
Continuity mistake: When Tom and Eddie get to the building where Mary Anne was killed, it's dark outside, yet when they walk through the door, it appears to be daytime.