Factual error: The movie is set in Rwanda in 1994. At the start of the movie you see a billboard advert for MTN, a South African cellular service provider that was not available in Rwanda in 1994.
Factual error: When Amy tries to escape from Mort in her car, there is a shot showing her feet trying to hit the right pedals to get the car moving. Her car is a SAAB 9-3, but the shot from the footwell of the car is not a SAAB.
Factual error: When Max and Vincent are at the second contract killing destination, Dispatch calls and Vincent is holding the receiver. In one particular shot he does not release the button on the side of it and we hear Lenny speaking. This would not be possible: he would have to release the button first to hear what Lenny is saying. (00:29:55)
Factual error: On the map, Budapest is indicated to be just as large as Transylvania, or at least of the same size category. Apart from Budapest being only a city and Transylvania a pretty large county, Budapest (taking its 19th century size) is not more than 500 square kilometres while the Transylvanian region is circa 57000 square kilometres. (01:11:40)
Factual error: After the robots first attack New York City, a series of newspapers is shown. The German one is full of mistakes. It says "Sehr grosse metallic Maschinen stehlen stehlen Reserven." The word 'metallic' would be 'metallisch' in German and they would write robots as 'roboter'. 'Stehlen' (steal) is written twice. (00:15:15)
Factual error: The Great Exhibition was held in 1851, roughly 15 years before the film takes place.
Factual error: When Ryan is waiting for Jason Statham to call him back, the ringtone heard is polyphonic. The type of phone Ryan has plays monophonic ringtones only.
Factual error: When Ford is about to start up the Y2K bike, Ice Cube's character is giving some stats on the bike like o to 200 in ten seconds, and carbon fiber chassis, he's got it all wrong. The bike does zero to 204 in 6.1 seconds and is made of aluminum; with only carbon fiber wheels, not the chassis.
Factual error: In the very beginning of the film, the priest is walking through a battlefield that contains the bodies of Roman soldiers (they are wearing distinctive Roman uniforms and armor), which dates the battle no later than 6th century AD. He is holding a rosary in his hand, but the rosary wasn't introduced into the Catholic Church until the 13th century.
Factual error: In the scene when the kids are on the boat hunting the snakeheads, Amber fires at least eight shots from a six shot, snub-nose revolver. Her friend then grabs the gun and fires two more shots from it.
Factual error: When the pills are being recovered in the mock police raid, we see, several times, an observer watching through binoculars. We see his eye enlarged, despite our looking the wrong way down the lens.
Factual error: After Samuel shoots himself he is lying on the floor next to the Glock he used. The slide is locked back even though he had only one round and no empty magazine in the gun. The slide will not lock back in this configuration.
Factual error: There are many police interactions that would not take place in reality. For example. (1) All officers would be trained in vehicle use. Failure to be able to handle the vehicle would result in termination. He would have been booted from the academy. (2) When an officer is suspended, the badge, ID AND weapon are all removed by the officer in charge. In this case, only the badge was taken. (3) The officer in charge would likely only have the option of offering suspension without pay pending an emergency suspension hearing with a recommendation for termination. She could not fire him on the spot. Also, once officially fired, based on the merits of the inappropriate activities, he could not be taken back, regardless of the good deeds - past, present or future.
Factual error: Marie discovers that letters in a 9th century ornament are actually Arabic numerals. Those were not introduced into Europe until the 13th century and although the numbering system was already in use in Arabia, it used different glyphs than the ones she identified.
Factual error: When Trevor is struck by the VW Beetle, not only is he not thrown forward along the Beetle's path, he actually lands well behind the point of impact - more than half the length of the parked van. He doesn't bounce off another object that changes his direction. He's just thrown up, then falls rearward above the car. (01:08:35)
Factual error: In the scene where the people of Rejection/Perfection are preparing to fight the Dirt Dragons, Hereim loads the Punt Gun and puts a little gold piece in it (a percussion cap, containing a small amount of gunpowder used to set off the main charge in the barrel). He shoots at the Dragon when it pops up and misses. The next time he loads the gun, he does not replace the percussion cap (which can only be used once), yet he is still able to fire the gun with no problem and kill the Dirt Dragon.
Factual error: A murder investigation would not be handled by a Detective Constable (he says he's in charge). Detective Chief Inspector is the usual minimum rank for a senior investigating officer, and such a high profile murder investigation is likely to be under a higher ranking senior officer.
Factual error: When Kelly's head gets chopped off from her P.O.V. the killer slices her neck from left to right, and her head spins anti-clockwise, If it was from Left to Right her head should spin in the opposite direction. (00:06:45)
Factual error: No real archery instructor would allow Princess Mia or anyone for that matter, to shoot with people in front of the shooting line and that close to Princess Mia. And, the arrows aren't retrieved until all have been shot, not after every one.
Factual error: In the scene where Micky and Howard are discussing Livia's parking ticket, Micky mentioned that date the ticket was issued was September 5th, a Thursday. The movie takes place in 2003 where September 5th was a Friday.