Continuity mistake: When Shavoo and Buddy arrive at the storage area, but before they open the cell, they clasp hands. The shot changes, and their hands are now down and no longer clasped.
Continuity mistake: At the first part of the movie when Candy (the prostitute) leaves the courthouse to talk to Derek, her hair moves between shots. Sometimes in front of her shoulder and sometimes behind her shoulder etc.
Continuity mistake: Approximately 10 minutes into the movie the main character is going to burglarize a house and there is a guard dog on a chain in the yard that bites him, through a black mask, on his left cheek. After he is in the upstairs bedroom trying to open a safe, you can see blood around the hole near his left eye, but when he pulls off the mask, there is no longer blood on his left cheek, or any signs of a puncture wound.
Continuity mistake: When Eve pushes Chev down the stairs at the horse track, we can see there are more seats underneath them. But they fall over the side and onto the track (close to the wall). In the next few shots they start to have sex, and when the camera pans out they are in the middle of the horse track without ever getting up.
Continuity mistake: In the scene where Joel, is driving from his house (where he just asked his wife about the filthy pool) to Step's, house (at about 59:14 - 59:17 into the film), Joel's face is not beat up or bruised at all. His face is beat up before and after this scene.
Continuity mistake: During the fight in the bathroom, Zoe and the villain break a bathroom stall door and side-wall down. In the next shot the door is back up in its original position. It is the same door that is beside the urinal, not another stall, as it's a small bathroom with only one stall and urinal. (00:28:30 - 00:30:00)
Continuity mistake: During the scene when Ian is taped to the chair, the duct tape across his shoulders changes from shot to shot. Some times it touches the shoulder seams on his shirt, and other times it is several inches away.
Continuity mistake: After seeing the aborted baby, Quaid goes into the bathroom and plunges his head into water. His hair, however, is perfectly dried afterward. (00:35:35)
Continuity mistake: When Billy and Bolger are driving down the road after the funeral, they are on a 2-lane road, with nothing but grass and trees on either side. But when the shot changes so they're facing the camera, it's a 4-lane road with a lot more traffic. Then the road becomes much bigger with a median.