Continuity mistake: When Ryan Reynolds is between the two hospital beds, preparing to pull the plugs, there are three wires he grabs to our left (two white and one black). He yanks all of them out (along with another white one to our right) and no plugs remain in the red outlet cover on the wall. But in close ups, as the other agents are banging on the door, we see the lone black wire is still plugged in. (01:40:15)
Continuity mistake: Near the end of the movie, when the helicopter sets down on top of a tall building, the registration mark of the aircraft changes noticeably several times, from G-ORMA to G-ICSG and back again.
Revealing mistake: When the truck leaps off the ferry, the underside is seen, exposing the still-flaming 'roll cannon' opening in the rear floorboard. This cannon is what caused the rear of the truck to rise, sending the truck flipping through the air. (01:52:30)
Continuity mistake: After Marcus kills Kraven, we cut back to Selene and Michael. As he talks about her saving his life and that how everything has changed, part of Selene's fringe switches from hanging in front of her face to tucked to the side between shots. In the closeup shots it hangs in front of her face and in the wide shots it is tucked to the side.
Visible crew/equipment: In the scene where the Humvee pulls up at the checkpoint - two chocks are visible by the front tyres. They're not part of the roadblock - a couple of bits of plywood wouldn't stop even a determined Mini. Most likely, they're simply chocks to make sure the Humvee hits its mark. (00:12:35)
Revealing mistake: The money that the two gang members are counting in the opening view of the hotel room scene is obviously fake. Notice how white the bills are, when they should be greener and have more of the random anti-counterfeit features. (00:02:00)
Factual error: When Hope is driving the pickup in the car chase, she yanks the parking brake, causing a tank of propane to fly out the tailgate and into the car that is chasing her. This is completely impossible. The tank would have slid in the other direction (forward) and slammed into the back of the cab when she slowed down. (00:38:10)
Factual error: When the Marines strip off and run into the sea in the final scene, Doc takes off a pair of white socks that would be more appropriate for a final at Wimbledon. Not only are they white rather than khaki, they are virtually spotlessly clean which would be impossible after a week of fighting on the black sands of Iwo Jima.
Continuity mistake: When Huo Yuanjia and Master Chen fight in the restaurant, Huo slices the top of Chen's head, yet when Chen is brought to his house the cut is gone.
Continuity mistake: When they are auditioning for the team, they stamp the fat kid's file "approved" under his photo parallel to the bottom edge. The camera cuts away and back to show the stamp at an angle with part of it on the photo itself. (00:13:40)
Factual error: The movie is supposed to be set in South Carolina and shows license plates on the front of cars. But cars in South Carolina don't have license plates on the front.
Continuity mistake: When Helena is fighting all the guards on the staircase, there are knocked out guards and a samurai sword lying directly behind her foot. In the next shot, they are all to the side so that Helena can run down the steps.
Other mistake: The same shot of two guys looking at a computer while sitting outside on the school campus is used in two different scenes. (00:02:15 - 00:11:35)
Continuity mistake: At the very beginning of the movie, when Kim Basinger is in the bedroom and walking towards the mirror, the movements of her reflection do not match her movements. She stops moving and her reflection continues to move. (00:04:25)
Continuity mistake: In the garage scene, 02 pulls a pistol from the guy he beat to the floor and stuffs it into his pants quickly as his girl starts trying to kick the guy on the floor. when he stuffed the pistol into his pants the grip was pointing to his right pocket. With the quick struggle the shot changes back to the pistol in his pants and now the grip is pointing towards his left pocket, and no one touched it.
Character mistake: In the training room, after Randall is discussed as the record holder, the students are brought to attention. All but one is standing at attention, he is in the back on the right hand side, standing at ease.
Continuity mistake: In the scene where the guy and the girl are making out on the bed, they trigger a bell to ring in Kane's lair. The bell shown ringing is a large bell on the far left top row of two rows of bells. When he walks into the room to see which bell is ringing, the bell ringing is a small bell in the middle of the bottom row and the large bell isn't moving at all. Later in the movie, that same large bell is triggered when the kids are walking down the hall and hit a trip wire, and it makes a completely different sound than the first time.
Plot hole: If the gasoline in fuel lines and tanks is reaching flash point and exploding, there should not be so many cars just sitting around. Surely all of those vehicles' tanks are not dry.
Continuity mistake: When the guys in the Impalas are chasing Chevy and his girlfriend from the sweatshop, the last car hits the fence. Right before the car hits the fence a guy is hanging out of the window (meaning it's open). After Chevy walks up and finishes the guys off and turns around the angle changes with the car behind him and the window is up. Chevy would have shot it out EVEN IF the guy rolled it up. (01:03:30)
Continuity mistake: After they ditch Burns in the woods, they plan to go through a small graveyard. As the captain starts briefing the squad we see him taking the cigar out of his mouth. When it cuts the cigar is back in his mouth. (00:21:40)