Continuity mistake: When Jim is driving along the road, the car with the boat on the back passes him. When John appears, Jim pulls out onto the other side, and the road is just flat with sand and grass, yet when it cuts to a face shot of Jim there are now large mounds of mud, or something, at the side of the road.
Continuity mistake: During the scene where Ryder has a knife to Jim's throat and is asking him to repeat "I want to die", you can see through the passenger window behind Ryder that morning is starting to break. About a minute down the highway when Jim and Ryder come upon the construction zone, it is now black as night again.
Continuity mistake: When John has just dived into the Sheriff's truck from the prison truck, and tells Jim to drive, Jim accelerates, then brakes hard, to throw John through the windshield. As Jim brakes, John's left hand is holding the shotgun, and his right hand is holding Jim's lapel. In the next cut, as John goes through the windshield, the shotgun is in his right hand.