Continuity mistake: When Yulaw is in the vents and the police are shooting at him, you can see that the policemen's flashlights on their guns are on and pointed at the vents, but in the next shot where it shows the vents, there is no light shining on them. (00:04:55)
Continuity mistake: When the police trucks are racing out of the garage and the first one hits its roof on the opening garage door, look at the truck the very next shot. There is no damage. (00:06:20)
Continuity mistake: After Yulaw killed Lawless, he makes a run for it through a busy street and past a section of road construction. There is a cop chasing him and looks down saying, "Holy shit... he's doing 50." Only two shots later it shows Yulaw running across an intersection, and he is not moving anywhere near fast enough to be going 50mph. (00:06:55)
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)
Factual error: When Gabe is shooting at Yulaw through vents he first shoots at the opening above the door, then at the spot where Yulaw's hand shoots out. After this, he fires at the vent above the door again, only there are less bullet holes than there should be after the first shots at that area, let alone the two sets of shooting together. Also the hole where Yulaw's hand came down is no longer there. (00:20:30)
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)
Continuity mistake: Right before the evil Jet Li shoots the cop Jet Li, the cop Jet Li slides down a concrete wall with a huge groove in it. In the next close-up, he turns around and he is standing farther down in front of the wall. (00:23:05)
Other mistake: In the chase scene after Yulaw first tries to kill Gabe, Gabe is chasing Yulaw on foot and shooting at him. There is a parked police car that Yulaw runs in front of and by. Gabe fires a shot from his pistol, and the back glass of the police car shatters. However, Gabe was in front to the right of the car. The front windshield was undamaged, and neither of the two side windows were damaged. So Gabe was in front of the car, shot, and somehow only busted the back glass. (00:23:30)
Plot hole: In the second foot chase scene, with Gabe chasing Yulaw, both of them make it over a tall wall with razor wire on the top. Yulaw does it with little effort, and Gabe struggles doing so, but also makes it. They only got over the wall because of their enhanced abilities from the murder of their other dimensional selves. Later in the movie, Gabe says. "I wouldn't be here, if you guys didn't make it up right behind me." His friend then says, "We never made it up that wall." Ordinary humans could not do what the two Gabriels did. However, in that chase scene after Yulaw shoots Gabe and he falls over, it shows the MVA agents suddenly popping up over the wall and shooting at Yulaw. How did they manage to get up the wall? (00:24:15)
Continuity mistake: When Jet Li arrives home after checking himself out of hospital, on his way up the stairs there's no light visible through the curtains. Just after he reaches the top, we can see them again behind Carla Gugino, and there's daylight pouring through them. (00:24:25)
Audio problem: When the MVA agents confront Yulaw in the hospital, Funsch locks in on Yulaw's right shoulder first. His gun's sights show up, being blue, and then turn red. There is a sound that the gun makes before the sight vanishes. The shots change, and you hear the sound end while the site is off screen showing the scared doctor. Then, several seconds later, it shows Roedecker's gun lock in on Yulaw's left shoulder, and the sound happens as the blue site turns red, and vanishes. However, the site from Funsch's gun is still on Yulaw visible and red, only now vanishing. The sound it made already indicating that it was gone, but it wasn't. (00:33:25)
Revealing mistake: When Yulaw and Gabe are having a confrontation next to the MRI machine, Gabe jumps across the table and kicks Yulaw. Here you can see the attempt at face replacement on the stunt double as Gabe, which looks fake and plasticy. (00:34:50)
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)
Continuity mistake: When MVA Agent Harry Roedecker is hitting the evil Jet Li with the fire extinguisher you can tell that the entire scene was pasted together because Jet Li's hands are up in one shot then down in the next, then back up again as he's being hit. (00:44:15)
Continuity mistake: When the evil Jet Li hits the motorcycle cop with his motorcycle, he crashes into a store gate and bends it. The camera angle changes to a wide shot and the top of the gate is now broken when it wasn't in the previous shot. (00:48:35)
Continuity mistake: In the garage when two cops are looking for Gabe, they are startled by a cat. Just before the cat jumps out, both cops have their flashlights on. Once the cat jumps out and they follow its movement, the camera cuts to show them turn around, and now the cop with the green jacket's flashlight is off. (00:52:45)
Continuity mistake: When TK sees the dust on the floor below the attic hatch, she takes off a white jacket and drops it on the floor right next to it. She then goes to get a chair and returns. Now the jacket is gone. (00:54:10)
Audio problem: When TK finds Yulaw in the attic, Yulaw is impersonating Gabe and asks TK to get him a gun. Just before she walks away, the last thing Yulaw says is "TK." But his lip movements don't match up to what he says. (00:55:10)
Factual error: Just after TK gets the gun for Yulaw, who is pretending to be Gabe, she sees the real Gabe out the window. It cuts to him crouching behind a fence, with his dog in front of him. The dog has its back to the camera, and is facing Gabe while sitting down. Here, they dubbed over a sound of a dog growling to make it more suspenseful. But that part is entirely wrong. One, it is Gabe's own dog, who in a previous scene was happy to see Gabe and wagging his tail. He would not be growling at his master in such a manner at this point. The dog is also sitting down in a relaxed posture. If the dog was actually growling at him in such a threatening manor, it would not be sitting down, but standing and head lowered. (00:56:00)
Revealing mistake: While still fighting on the cat walk, Yulaw does a spin kick at Gabe's face. You see Gabe react as if he got kicked in the face, and tumbles over the side. You can see the kick never even contacts Gabe's face as the stunt double reacts to it. (01:07:45)
Chosen answer: After he says he will go to the hospital, his wife says "ni shuo de" which simply means "you said so" (so now he has to do it).
tw_stuart