Continuity mistake: When Maya is trapped in the bathroom and the bad guy breaks in, she drops her pepper spray which you can see lying on the floor when the bad guy is talking on the phone. Shortly afterwards it's gone. (00:47:35)
Other mistake: When Cam get his paycheck you can see his home address as 49-54 39th Street Queens, NY 11101. When Cam gets picked up by Miller in his blue van the logo on the door says M M CONST 49-54 39th Street Queens, NY 11101. It is the same address where Cam lives. (00:03:55 - 01:03:20)
Factual error: Herman Melville interviews whaling survivor Thomas Nickerson in Feb. 1850. Nickerson tells him "I heard a man from Pennsylvania drilled a hole in the ground recently and found oil." Oil was discovered in Titusville PA in 1859.
Continuity mistake: When he fights Chuck Lidell, he is wounded on the right side of his body. During a scene when he is lying on his side, the wound has moved to his left side and then magically reappears back on his right when he stands up.
Revealing mistake: Right at the beginning of the film "rain" is falling on the car the camera shows before it moves to focus into the tunnel. However, look at the cars behind it, they aren't wet at all and it's visibly sunny. It's water being poured onto the car directly in front of the camera.
Continuity mistake: When Tris saves Christina from falling and then rolls on to her back you can see her sports bra underneath. In the next scene, she and Tobias have a brief sex scene where she removes the same top, but there is no bra underneath.
Continuity mistake: Licence plates in front and back of the car are different and from different countries: Front: German WI-UX 995 Back: Italian QM 645 LC. (00:29:30)
Continuity mistake: When Jesse Eisenberg seeks shelter at John Leguizamo's house, John Leguizamo pulls a gun on him. Jesse Eisenberg grabs the gun from John Leguizamo and in the close up of this action it's a completely different gun. (00:40:55)
Factual error: When he is in the restaurant and looking at the security feed, he does a who command when it should be "whois". Also the IP is incorrect - the 3rd octet is 265, despite the maximum possible value being 255.
Factual error: Near the end, Jackie Chan's vastly-outnumbered forces resort to throwing stones to somehow utterly destroy a phalanx of Roman legionnaires in close-quarter combat. This scene flies in the face of what we know about Roman military superiority in the time of Tiberius. The Roman Army was the best-trained, best-organized, best-equipped military force of the Ancient World, specializing in tireless close-quarter combat and impenetrable defense. To suggest that Jackie Chan's frantic and disorganized group of fighters (throwing stones by hand) might overcome Roman legionnaires is like suggesting that cave men might overcome the modern U.S. Marine Corps.
Character mistake: The poster on the wall near the start reads "Our Egg Donor's [sic.] are helping to fulfill the dreams of women across America." There is an unnecessary apostrophe in the word "Donor's." (00:10:05)
Continuity mistake: At the end, the TV newscaster reports that 150,000 reserve human forces have been activated. But the crawl strip at the bottom of the screen reads "150,000 RESERVED human forces," a different meaning altogether. (01:59:00)
Revealing mistake: In one of the opening scenes the platoon of the captain is gunned down by a MG42. You can see the crimped fronts of the blanks in the belt.
Continuity mistake: When the big truck chases the red car and repeatedly rams into it you can hear broken glass, etc. but in the next shots the back of the car is intact, red and shiny, without a scratch on it. (01:05:00 - 01:06:00)
Continuity mistake: In the scene with the fireworks, the Deputy driving the vehicle has his outside mirror knocked off by a firework. You then see the same and only Deputy in the car, in the mirror getting out of the passenger side of the vehicle to confront the misfits. The change isn't due to the reflected image. (00:13:05)
Continuity mistake: At the very start of the movie as the 2 guys walk down the alley way, the one in the black jacket lifts his arm up as he passes the rubbish bin. In the next shot from the front both his arms are in his pockets and the rubbish bins completely disappear. (01:00:00 - 01:01:00)
Continuity mistake: The drawing of the church Kelly shows is different than the one she started to draw, even if she erased lines. The whole thing is shifted over to the right and both top lines go from angling towards the horizon to one being straight.
Continuity mistake: As Jake and Olivia steal a car while their enemies are shooting at them, we see a rear-view mirror. A few seconds later, Jake turns to check if they are followed, and the mirror has vanished. As they reach the safe house the mirror is back. (00:19:55 - 00:21:30)
Factual error: At the beginning of the movie, the Battle of Scheveveningen (1653) is depicted. However some of the British ships sport a gaff-rigged mizzen spanker, which was not introduced until late in the next century.