Continuity mistake: When Bogomil was running out at Dent's oil fields it was a dry and dusty day. He stopped and picked up some of the dirt - and it was very loose. But there is wet mud on his sneakers. Furthermore with the amount of mud left underneath he would have had to have gotten into a car immediately and driven home - not run - otherwise it would have fallen off. There is so much mud that he couldn't have walked many steps without it falling off.
Revealing mistake: After Axel gets off the phone with Jan, when the trio are driving to the racetrack, in one shot Axel has his arm out the passenger side window as he's holding the red police beacon on the car's roof. Note the stunt double's gold watch instead of Axel's black watch. (01:19:45)
Continuity mistake: The same exterior shot of the Beverly Hills Police Dept is shown three times, with the same people standing/walking around in front. The first is just before Bogomil opens the 'A' envelope. The second is just before Axel looks up the coordinates on the computer, and the third time is just before Bogomil announces his position as chief of police. (00:09:15 - 01:02:00)
Factual error: While Karla is shooting in the gun club she is using a revolver. Bullet shell casing are flying out from her gun and dropping to the ground. Revolvers do not eject the shell casings while firing.
Continuity mistake: As Sidney Bernstein pulls two $100 bills from his wallet and hands them to Axel he says, "Here's one, here's two. They're real crisp," so then Axel holds the two bills in his right hand and the papers in his left hand. However, in the next shot facing Axel, there are now at least four bills in Axel's right hand. (01:17:35)
Continuity mistake: When Axel breaks open the drawer at the B.H. Shooting Club, he finds the notepad with the coordinates. When the pad is in the drawer there are five full lines of writing with a sixth short line below it, but when Axel takes the pad out of the drawer there are only four full lines of text with two more short lines below. (00:59:10)
Factual error: When breaking in at the gun club, Axel squeezes the gum foil in the door crack, and fastens it with the gum. But the gum is on the outside of the door. When he opens the door, the foil would flip a bit back, so it would not connect the magnet on the back of the door - where there is no gum.