Continuity mistake: At the gas station with the hillbilly, the gas nozzle that Nick puts in his car when he is thinking of his wife is first red, then black, and then just silver. (00:22:20)
Continuity mistake: When T. has robbed a gas station, the hillbilly that owns the gas station breaks one of the mirrors of the car with a shotgun blast, and he even smashes the back window of the car. But when they are driving off there is one shot where the mirror is miraculously back in a perfect condition while the back window is still broken. In all later scenes the mirror is dangling down. (00:24:10)
Continuity mistake: After the run-in with Nick, T. Paul and the other two criminals, T. Paul ends up shooting the tire of the criminals' car, and they exit, leaving the criminals stranded. The criminals end up stealing an English guy's car, but when they catch up with Nick and T. Paul after they've robbed Nick's boss, they are driving their old, beat up, and supposedly punctured car.
Continuity mistake: At the very end, Nick puts the last of Mama's mustard on his hot dog, but when he takes a bite, there is no mustard on it.
Continuity mistake: Nick gets a bullet graze to his arm, yet there's no tear on the sleeve.
Continuity mistake: After Nick and T. have checked in at the hotel Nick goes down to the bar to get drunk. On the counter in front of him there are five glasses in equal distance in a straight row, but when the camera angle changes the row is not straight any more and one glass is moved away from the others. (01:08:20)
Continuity mistake: When Nick is with the woman from the bar, she rips his shirt open and buttons go flying. When he goes back home to his wife, his shirt is buttoned up.
Continuity mistake: When Nick and Terrance are fighting to get the extra credit card outside the restaurant, you can see a dog looking at something off screen. The next shot, it's head is in a completely different direction
Continuity mistake: During the last car chase with Rig and Charlie, the climate controls on Nick's Yukon change. When the front windshield is being shot at by Charlie, it's about 2/3s of the way up, signifying a warm blend of air. When Charlie crashes and Nick pulls up and parks, just before grabbing the gun, you see the dashboard once again but the climate control is now turned all the way to cold. Also, during that same chase scene, a little red light blinks on the dashboard which suggests that the vehicle wasn't even running to begin with as GM uses these as a "security" feature and they typically blink when the vehicle is off. (01:21:00)