A lot of quality fight choreography by Sammo Kam-Bo Hung was cut from the films final release. This included the drastic shortening of both Jeff Wolfe and Michael Miller's fights against Jean-Claude Van Damme in the finale. In the UK DVD Making Of, a glimpse of Jeff Wolfe's extended fight can be seen
Hong Kong superstar and director Sammo Hung served as the film's 2nd unit director. The release print of "Knock Off" suffers from the removal of a lot of the martial arts action shot for the film, with a couple of sequences being very heavily edited. The final battle between Jean-Claude Van Damme's character and Australian actor/stuntman Michael Miller is less than half of the action shot for their fight, and upon careful viewing you can pick up the fact that the fight has raged across several different sections on the boat, while the fight between Jeff Wolfe's character Scar and Jean-Claude's is the most heavily edited with more of the action being shown in the "Making Of" featured on several of the DVD editions than in the finished film.
(at around 18 mins) Jean-Claude Van Damme tries to stop a black van by hooking his rickshaw onto the side mirrors of a van whose driver is a Caucasian. In the next shot (15:25), the driver turns into a Chinese stunt double.
Harry Johanson: Once we have our little baby bombs all over the U.S., they'll be a monthly satellite bill that would make HBO green with envy. A hundred million dollars a month. And if they don't pay, we send the detonation signal... and good-bye, yellow brick road.