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.
Other mistake: When Nick comes back to the hotel room after his encounter with Danielle and the elevator stops, he sees the two robbers walking by (not even looking at the open elevator) and enter another elevator which has stopped a moment later. Since this is the top floor of the hotel (as can be seen later) the logic elevator control wouldn't have sent another cabin to this level as Nick's was already on the way up. (01:15:00)
Other mistake: Shortly after Nick takes off with T. he is heading for a truck from which a pallet with paper is being unloaded. The pallet blocks the whole space between the truck and the building, but when the camera angle changes to the other side, truck and pallet are shifted away from the building that there is enough room for Nick's van to zip through. (00:12:55)
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)