Revealing mistake: At the end right before the van blows up, we see John and the girl get in to it - if you look very closely, John disappears at the exact second the door closes. (01:46:20)
Continuity mistake: At the end, right before the train crashes into the limo, the back of the limo is facing the blocking rail. However, after the train hits the limo, the front half of the car is right next to the rail, and the rear half is nowhere to be seen. (01:48:30)
Other mistake: If the bullets from the super gun move at just under the speed of light, how come the bad guys can't hit him or the girl? The bullets would arrive almost instantaneously and that would mean minimal compensation for them running. Plus the guy had them locked on when he shot.
Factual error: Even aside from the ridiculous recoil that a railgun would cause (yeah, I know they don't use gunpowder, but there's got to be SOME opposite movement, surely), how come when the darts (bullets, whatever) go straight through people, they still get thrown backwards? The passage straight through them means minimal energy being transferred to them, and as such they shouldn't be hurled backwards that much.
Plot hole: There's absolutely no reason why Kruger had to page Lee from the plane after he'd been drugged. The bad guys had no idea where Lee was until he did that and they traced the phone call. Not only did Kruger give away Lee's location, but he also gave away the only thing keeping the bad guys from killing him.
Factual error: In several scenes where someone is shot with an EM gun it nails them to the wall, but if someone was shot with a bullet that was going near the speed of light it would go right though them. And the person wouldn't move at all, they would just fall down.
Factual error: When they are running the disc from Donahue's office, the technician takes the radio to transmit their exact location. But at the beginning of the movie, they "lose transmission in the vault." There's no way a radio would work in that room.
Suggested correction: The video transmitter is low power (likely under 1 watt, and possibly also in the microwave frequencies) whereas the 2-way commercial radio is much higher power, in the UHF or VHF bands, with a system that is designed to minimize dead spots in the building, likely using a repeater system to boost the coverage.
Revealing mistake: During the NYC Zoo fight where the giant crocodiles come out for action, when the crocodiles devour the first bad guy he is very obviously CGI. His head is twice as big as his body, looking really ridiculous.
Other mistake: In beginning of the zoo scene, Cullen shoots J. Scar in the leg and he collapses in pain. For the rest of the scene, he pursues Cullen and fights as if nothing was wrong with his leg.
Factual error: In the train wreck scene at the end of the film, we hear the railroad warning bell clanging, the train horn blaring, James Caan and friends screaming, the fiery roar of the impact, and the rumble of the train plowing through the wreckage. In reality, all of these sound effects would have been drowned out for the duration of the scene by the ear-splitting, squealing screech of powerful railroad brakes that the engineer would have applied long before an unavoidable impact. Omitting the sound of railroad brakes is still a common factual error in modern train-collision sequences.
Continuity mistake: When Lee's disc is delivered (and stolen) from evidence lockup, the courier delivers the disc inside a briefcase. He hands it over while holding it with just one hand. In the next shot, he's holding it with both hands.
Audio problem: At the beginning of the film when Kruger rescues the mafia guy and his wife they hurriedly get in the car. Kruger somehow manages to pull down the gear shift immediately before cranking the car up. Listen closely you can hear the ignition starting after he's pulled the gear down.
Factual error: All the containers have sheet metal covering the bottom, not visible bottom crossbeams as they should.
Plot hole: Kruger's boss (James Caan) is in league with the bad guys. He convinces Kruger to help him protect the witness at the log cabin all in an effort to draw out Leigh from hiding and there are five bad guys at the cabin waiting for them. This of course is all a setup but what if one of those bad guys at the cabin had killed Kruger? Then Kruger's boss wouldn't know where to find Leigh and they would all be back to square one.
Suggested correction: A "What if?" scenario that doesn't actually play out can't be considered a plot hole. DeGuerrin is counting on the skills of Kruger and his own team being much higher than a bunch of cut-rate mercenaries, and that is exactly what happens. DeGuerrin enacts a plan that carries a high level of risk, but he and his cohorts have been backed into a corner. If they don't try, they will all go to jail. In addition, when you think about it every police/military raid carries the risk that someone you don't want to die might actually be killed. Risk is part of the job but that doesn't stop people from doing what needs to be done when the time calls for it, and to trust that their skills and training will keep their team safe.
Plot hole: The Feds had plenty of evidence to move in on Cyrez after Leigh's encounter with Donahue especially after his admission on camera, so there's no reason the company would still be in operation as if nothing had happened. At the very least all operations would be on hold until the hearings were concluded.
Suggested correction: Donahue didn't actually "confess" to anything specific, just some very vague things that the FBI wouldn't risk their entire investigation over.
Plot hole: The whole idea of copying the files to a disc (and a copy) is a pointless plot device. First of all since the information on the discs cannot be accessed outside of Cyrez the bad guys are putting an awful lot of effort into getting rid of it when all they need to do is kill Leigh. Second, if one has to be at the vault or Donahue's office to access the information then then it's no different than accessing the information on any given day of the week. All the Feds needed was a warrant to look at Donahue's files and everything in the movie could have been avoided.
Plot hole: Considering how much the bad guys stand to lose from Leigh's cooperation with the Feds they would have already been at her home ready to kill her long before her or her ex got there, and wouldn't need to wait for her to access the copy she made before swinging into action.
Suggested correction: They had already intercepted whatever evidence Leigh had because of their inside man at the evidence depot. Donahue was to be made an easy scapegoat since he admitted his guilt on tape and subsequently killed himself. With the scapegoat dead and the evidence lost the case would go away on its own. Killing Leigh at this point only makes the company look more guilty and prove that Donahue was not solely responsible.
Continuity mistake: As Johnny tells Kruger about his cousin, he drops his hand. A second later, he does it again.
Visible crew/equipment: In the car after the bar scene, as Johnny gets the info from Kruger, the shadows of the camera rigging plays across the actor's faces.
Visible crew/equipment: As Kruger approaches the bar, the shadow of the camera shade plays on the back of the man's head just before you see who Kruger came to see.
