Trivia: The whole bank robbery scene from the beginning of the movie, with the 2 guys with AK-47 shooting at all those police officers, seems like the North Hollywood bank shootout of 1997. In fact some of the radio calls ("There's nothing we have that can stop them.") are from the actual event, as is some of the footage. The movie scene is loosely based on this event. They had 2 guys in full body armor shooting back at police officers, while getting hit with so many bullets, without even flinching. The real thing ended with one of the guys being finally shot in the head. The other one was injured and ended his own life before police could close in on him.