Trivia

During the "hallway shot out" between Alan and Mad Dog, Tony Chiu-Wai Leung was cut in the eye by a shard of glass. It happens when the two men are shooting each other from opposite sides of a set of glass windows. If you pay attention, Leung suddenly covers his face with his arm, an indication of when he was hit with the glass. Leung was given a day off to get medical attention and returned to the set to finish filming without problems. See more