Revealing mistake: During the credits, while the extra "hidden" comedy scene is playing, the sky is completely blue. The special effects crew forgot to add in the night sky on the blue screen.
Plot hole: When the "black diamond" is being turned into its dangerous form, the arms dealers get very excited. Yet all they actually see is a very pretty laser show. There is nothing to show that the object really has any destructive power. Arms dealers make their fortunes by being cautious and smart. They shouldn't be so quick to accept the claims of the bad guy and bid money on possibly useless stones.
Other mistake: When Tommy and Archie are in the tank keeping the arms dealers distracted, Tommy turns his head to see what the noise he heard is(Vanessa breaking out of the van), allowing the laser technician to get behind a dual .50cal machine gun. However, it takes about 25 seconds for the laser technician to get to the gun and for Tommy to look at him. Tommy should have only glanced at the noise, but instead he looks and stares at it for a long time - 25 seconds. He would have easily seen and heard the technician going for the .50cal and had 25 seconds to pull the trigger and kill him.
Continuity mistake: When Fait's daughter gets the key to the van, she drives the van in the warehouse crashing into a number of items and you see the front of the van getting damaged. When we see the front of the van again right after Jump gets killed in prison, the front of the van shows no damage.
Continuity mistake: When Fait goes to see Jump in prison, you see Fait almost go after him when he tells Fait to make another little girl. Jump is sitting in his chair and he brings his cigar up to his mouth when he says "Drama". The camera angle changes and the cigar is no longer near his mouth. The camera angle changes again and the cigar is back in front of his mouth.
Visible crew/equipment: When Fait is being chased through an alley, a motorbike jumps over some boxes and a van. We can see the ramp which the motorbike jumps from at least two times. First from an above shot when the motorbike jumps, and from inside a police car when it stops right in front of it. This ramp wasn't visible when Fait drove by.
Revealing mistake: During the brief few shots where Fait is pulling out of the hotel parking lot, you can see that the sky is blue. The special effects production forgot to add in the night sky on the blue screen.
Factual error: If they used Liquid Nitrogen to freeze the safe door and crack it open, they would certainly not have opened the door by pulling on it with bare hands/flimsy leather gloves, without leaving half of the skin on their hands behind.
Continuity mistake: When DMX jumps into the building through the window, you can see that the view outside isn't real but only a photo/visualisation.
Continuity mistake: When Ling is trying to escape from the aircraft hanger in the helicopter, the helicopter loses stability and he sees Su hanging on the landing gear and you see the landing gear start to raise. Then in the next shot he tells the pilot to raise the landing gear and you see the landing gear start to raise again.
Continuity mistake: When the police surround the parking garage, you see them, via a television which is being watched by Fait's daughter, check and then wave through their blockade a dark gray car with a sunroof. The camera angle changes to a live scene of the parking garage, and you see the police waving through the same car through their blockade again.