Continuity mistake: After the bar fight scene in the beginning of the movie, they approach Robbie's Kawasaki 800 motorcycle parked in front of the bar on the street. In the shot there are no helmets around, on, or near the motorcycle, but when they ride away they are both wearing helmets.
Continuity mistake: After they jump out the window of the office building they get in a tan Ford Explorer. There are 4 bullet holes in the left front fender when the explorer is being driven through traffic. When they make a right turn into the warehouse, the bullet holes are gone.