Continuity mistake: When Scott wins his first MMA fight he removes his mouth guard with his left hand, runs over to the cage wire (guard not in his hands or his mouth) and slaps the wire, now with the guard in his mouth. (00:48:15)
Continuity mistake: In the opening scene, Frank Harper is seen getting in to a dark blue 1997 R reg Jaguar driven by Craig Fairbrass. After driving for a bit and a conversation they exit the vehicle and set light to the car. As it starts to burn and they walk away, you can see that the car is now a dark green 1996 N reg Jaguar.
Continuity mistake: In the scene where Will is wounded and riding on the back of a moped with Lucia, Jean steps out of her vehicle to try and shoot Will. At this time, she is wearing her black sunglasses as she points a pistol at Will. A Spanish cop steps in the way, and she can't take the shot. Her glasses are still on. In the next shot with her, she is watching them ride away and she looks disappointed, sunglasses still on. Shot cuts to Will and Lucia escaping, and then back to Jean. Jean is still in the same position with same look on her face, but suddenly she is not wearing her sunglasses. She shakes her head and says "Lucky" while putting on her sunglasses now, as if for the first time. (00:48:35)
Factual error: When Ranger takes Stephanie to buy a gun, the one she gets is a 5-shooter, but in the scene where she is firing it at the gun range by herself she shoots it 12 times without reloading. Later, in the scene where she shoots Jimmy Alpha, she fires it 7 times without reloading.
Continuity mistake: When the Wolverines are attempting to get "the box", the Matt Eckert character is shooting through a window. When we see his point of view, there are blinds in the way of the camera, however every time it shows the actor, the blinds are open.
Continuity mistake: When Jeremy and the cop girl are shooting for practice, the amount of cans changes between shots.
Factual error: Close up, very detailed footage of a Cobra citizens band radio is used for the scenes where dispatch radio traffic is coming over the police radio. Police dispatch does not, nor has it ever, used the Citizen's Band radio service. (00:11:25)
Other mistake: After the medical student leaves the unconscious co-pilot to one of the other passengers to watch while he goes to the bathroom, she notices his hands grow cold after a bit. It is only then they realise he has stopped breathing, and then get a defibrillator out and are successfully able to use it to revive him with CPR as well. However if he has stopped breathing for long enough that his hands have started to get cold, he would already be way too far gone to be able to be revived.
Continuity mistake: While he is copulating with Laurence, François Monge receives a phone call from his boss about the murder case in Bobigny. To shush his vocal partner, he gives her a slap on the shoulder, but he does it with the right hand in the view from behind, and the left hand in the full frontal. (00:08:55)
Continuity mistake: When Luke grabs a beer from the mini bar in the hotel, there's a lot of beer foam in the top of the bottle. In the next shot, when Luke's sitting on the bed, the foam is gone without taking a first sip.
Continuity mistake: Celeste's white Honda (Alabama plate #LF8VN3D) is riddled with bullets right after she drives up to the cabin, but there aren't any bullet holes later after the police show up. (01:26:00 - 01:45:00)
Factual error: The Iowa is sailing with a depleted crew, one that most likely has no experienced gunner's mates. The 16-inch turret requires a 79-man crew to operate it, and can fire a salvo every 30 seconds. Despite these handicaps, the minimal crew in the movie was firing salvos every few seconds.
Factual error: When the underground garage of the market is flooded, the car that Kyle and Heather are in does not flood. A car is not water tight like a submarine. Even though the water does not cover the top of the car, water would flood the entire car within minutes.
Continuity mistake: In the underground lab, Dr. Su offers to surgically remove the false memories he implanted in John's brain. He drills a half-inch hole in the right side of John's forehead, which leaves the right side of his face covered in flowing blood. John can't stand the pain, breaks free, and he goes on a rampage throughout the underground bunker, killing every UniSol in his path. As he fights his way through the bunker, the bleeding hole in John's head switches from the right side of his forehead to the left side, then back to the right side again. Also, in the last scene (an unspecified amount of time after the bunker brawl), John has no scar on his forehead at all.
Revealing mistake: When the truck starts rolling back you can see tyre tracks on the grass from previous takes. (00:46:35)