Factual error: After Calvin logged in a bank account with admin password on his Acer PC at home, he speaks about Chinese bank accounts. But the displayed CH stands for Switzerland. China would be CN. (00:30:30)
Factual error: As it happens in many Hollywood movies, we have a gun that is "ceramic" (actually a polymer, "plastic" as Ben corrects himself later) that is entirely stealthy, able to fool the metal detectors at the entrance of a building. It's not an imaginary high-tech device, but is explicitly referenced as the FN Five-seveN handgun (here called repeatedly as FN Five point seven). The metal detector would still pick up the metallic parts and the bullets. (00:40:25)
Factual error: A bullhorn can be heard in the background off-screen during a battle with the zombies, even though the movie takes place during Victorian times. (01:19:30)
Factual error: In the Templehoff Airport flyover scene there are Soviet era Antonov An-12 propeller driven aircraft on the tarmac. These were first used by the Soviets in 1953.
Factual error: Kim is seen using a first generation iPhone in the 2006 scenes. The iPhone was not released until summer 2007.
Factual error: Curiously enough, Michelle's mess in the bathroom with the self-tanning spray seems to be mostly made by footprints everywhere (but you don't tan your palms and soles, and the bottom of the foot is what she is using to lean on the wall anyway) while the spray she continues to apply does not color the tiles and towel in the slightest and nothing drips from the smooth surfaces.
Factual error: The limo shown is a 1990 (or later) Cadillac. It has large halogen headlamps and not the dual headlamps of a 70-71.
Factual error: In the scene when they are locked in the garage, they attempt to use vehicle air bags to propel themselves through a garage vent in the roof. It is absolutely impossible for a air bag to deploy by jumping on it. A air bag requires specific battery voltage and resistance supplied by a air bag control module to deploy a air bag. The physical act of jumping on it will not deploy it.
Factual error: After the death of his beloved pet turtle, Conner is on a downward spiral. One of the headlines that appear as paparazzi follow him (before he gets KTFO'd by Martin Sheen) has a "Friday August 08, 2015" date. Which was a Saturday. (00:58:10)
Factual error: When the boy sends the letter, it already has a postmark.
Factual error: Viggo is "playing" the bagpipes on the wrong side. They should be under his left arm, not his right. He is also not blowing hard enough to make the required sound. They sound good, though.
Factual error: In the wedding and arrest scene the U.S. Customs Service officials have police attack dogs. The U.S. Customs Service only has drug detection dogs. (01:57:00)
Factual error: Deputy Winston introduces herself and says she's with the Bunyan County Sheriff's Department. Her cruiser is mislabeled with Ackamas County Sheriff markings. (00:57:00)
Factual error: The email Vee gets at the start is dated 2017, and calls for her to become part of the class of 2020. If she went to CalArts in September of 2017, she would be part of the class of 2021. (00:01:05)
Factual error: When Pete is riding on the back of the school bus and jumping on top of the bus in the background a New Zealand style Give Way sign is seen and also on the left hand side of the road. The film is set in the USA so this should have been on the right hand side of the road. (00:34:00)
Factual error: I'm not 100% on the make of the bolt action rifle Lee is carrying but I know it contains an internal magazine of maximum 5 bullets. She opens the bolt, and no empty shell casing flies out, and for some unknown and stupid reason loads only one round into the chamber. Single shot bolt action rifles are usually very antiquated and hers isn't, or they are very large anti-material rifles with huge calibers of .50 BMG like the Steyr. (01:13:00)
Factual error: When Steve Carell is telling his nephew Jesse Eisenberg that he is leaving his wife, the view from his 1930s era Hollywood Hills home shows the modern skyscraper-filled LA downtown skyline.
Factual error: There would be no room for a thumb drive inside of a real Rubik's Cube due to the way they are constructed. When dismantled, the individual moving parts are quite small. It would certainly be possible to construct a facsimile of a Rubik's Cube that would have enough room, but it wouldn't be a fully functional puzzle the way it was in the film.