Continuity mistake: When the security guard opens the back of his vehicle the gun is pointing to the left, but when the shot changes as the security guard reaches in for the hat, the gun is pointing to the right. Then as he turns to put the hat on Tyler, the gun is again pointing to the left.
Continuity mistake: When Riggs is driving his car, it is hit by a boulder on the driver's side, but when he opens his door there is no damage to the car. (00:03:25)