Other mistake: In the king of the hill scene, there is a point when the evil Jet Li pulls down two guys. You can see bits of the green screen in those few frames.
Continuity mistake: Right after the prison escape, Jet Li goes after another version of himself that is a cop. The evil Jet is hiding in the duct work, and even though the majority of cops are firing their weapons straight ahead, the bullets are hitting the duct work 10 feet above them. (00:20:30)MCKD
Factual error: When Gabe is confronted by his fellow officers after they think he went crazy, he gets into a short fight with them. He subdues them handcuffing them together and to a wheelchair. The chains on the handcuffs are much too long as to what they should be. This was done to allow the stunt to be done correctly. (00:37:40)Quantom X
Revealing mistake: During the fight between Yulaw and Gabe, while on the catwalk up high, they both jump into the air. Yulaw kicks Gabe, who falls to the ground quickly. The shot showing Gabe hit, was poorly done, showing him fall much too slowly, and having a soft impact with almost no bounce at all. (01:07:55)Quantom X
Continuity mistake: In the chase scene after Yulaw kills Lawless, it shows him leaping across a gap between two bridges. In second shot, when he first start the jump, it shows him make it half way across the gap. Then the next shot shows him barely past the first railing, not close to half way yet. (00:07:10)Quantom X
Continuity mistake: When the bad Jet Li is running from the cops, you can see 3 cop cars, but when he jumps from one bridge to another, you only see 2.