When Jimmy Jimmy and King Kau's gang notices the fuse which is heading towards the powerboard, Jimmy Jimmy is smoking a cigarette. When Jimmy Jimmy gets the fire extinguisher and climbs the ladder to extinguish the fuse, he no longer has a cigarette.
During the surgery scene (approx. 12:00) one of the high-tech displays is just an ordinary computer monitor playing an animation of the human heart.
In the beginning when Jet Li's character is talking to the lady and she says: Goodbye Michael, you can see his lips move immediately afterwards as if he said something but no sound is heard.
Safety cable and harness visible during the fight scene on top of the industrial complex