Continuity mistake: When Mrs. Baylock pushes Kathy from the hospital window, we hear the sound of breaking glass. However, when she plunges into the ambulance, there is no glass whatsoever, nor do we see any when she is falling. (01:24:30)
Continuity mistake: Right at the end when the man takes his mask off, a strand of blonde hair hangs out from the back of "his" head. In the next shot the hair is dark brown.
Continuity mistake: In the scene where Napolean has saved the girl's life in the cell blocks, they go back into the main part of the police station and Napolean holds the door to the cells closed. The first time you see him holding the door closed there are bullet holes above his head but there has been no gunfire and he does not act as if the people behind the door are shooting at him. It's not until the film cuts back to him a second time (or possibly the third) that there is gunfire on the sound track, the bullet holes are focused on and his character ducks down whilst complaining that he can't hold the door for much longer.
Continuity mistake: When Frank Hallet first enters Rynn's house, he leaves muddy footprints all over the floor. The footprints are gone in later shots.
Continuity mistake: Eli Wallach dismisses the ex cop and the ex hitman and taps on the table to call attention from his clients. Cut, and he's suddenly holding the walking cane by the handle, instead than mid-length. (00:59:45)
Continuity mistake: When Brooke Shields yells "Mommy said that you had to come home right this instant", there's a long lock of hair in front of her left shoulder, which disappears at the cut. (00:06:20)