Continuity mistake: At the beginning of the film when the girl is shot, in the close up there is no debris on her face, but the next wider shot shows her face covered with dirt and other bits of debris.
Continuity mistake: At the beginning, the little girl's body changes position. When the trucker finds her, her lips are slightly apart, but when the police examine her body, her lips are closed.
Continuity mistake: When they are discussing whose pinkie gets cut off, Vince grabs Craig by the neck and pushes him against the refrigerator. Craig is first shown pushed against the right hand side of the refrigerator, but whenever the camera is on him for the rest of the scene, he is shown standing against the left hand side of the refrigerator.
Continuity mistake: The Sheriff and Leslie have an exchange in a coffee shop. As she walks past him, he says "How's the ex? You hear from him?" While saying this, his head turns to his right as he watches her go by and he is level. The shot changes to a closer one at a side angle and suddenly he is looking down at his plate. (00:42:55)
Continuity mistake: In the scene where Terrence Howard is questioning Colin Farrell his right hand first appears with a ring and watch, later in the scene it appears on his left. (01:08:25)
Continuity mistake: When Oscar is on the phone to learn about the location of the job interview in the warehouse district, the paper that was on top of the payphone jumps suddenly in the hand that holds the receiver to his ear, with the phone call already being over. (00:22:25)
Continuity mistake: After stabbing the bad guy at the beginning, Callahan for some reason pulls back and somehow dives past a door managing to drag in a grown woman who was all crouched down by the entrance. Wonky physics of it aside, the bad guy shoot at him, but shoots just a hole in the door frame. The hole appears to be CGI, and in fact when Callahan shoots back from the bedroom, the hole is gone. (00:01:35)
Continuity mistake: Jen unboxes the stuff she grabbed from the basement where she spotted the railroad tracks. She picks up a large vase which she shows to her business partner; the hand at the bottom is the vase is the left or the right one depending on the camera angle. (00:10:40)
Continuity mistake: Michelle Pfeiffer's costume. First we see her toes being painted, drying with tissue between each of her toes. She gets up from the chair to take the peppers out of the oven, talking to Fred about being a writer. She then goes out the door across the street with socks on and Fred's slippers. She never put on any socks or pulled out the tissue.