At one point, a guy falls out of his truck, but doesn't close the door. A moment later, his door is closed. No click, no sound whatsoever.
When Frank gets shot in the head, you can clearly see his eyes blinking when he clearly should be dead.
At roughly 12 minutes in, the passenger is complimenting the driver about his car and asks what year it is. the driver says it's a 1970. this is wrong. the Chevy Chevelle in the movie has two round tail lights on each side making it a 1971. the 1970 Chevelle had one square (ish) tail light on each side.