Factual error: An AED delivers an electric shock for a fraction of a second. It is not capable of producing a sustained current, as is depicted in the movie when Roger and Dr. P are being electrocuted.
Factual error: In the standoff between Meat and O2, Meat pulls the trigger to shoot O2 and his gun clicks - it is out of rounds. This is a common mistake: semiautomatic pistols do not re-cock after the last round is fired - the chamber remains open, so the gun will not click if the trigger is pulled again.
Factual error: The three scorecards of 95-94 for the Dixon vs Balboa fight could not possibly be scored that way for a ten-round professional fight in which so many knockdowns occurred. Each fighter went down multiple times, which would've resulted in a much lower set of numbers using the ten-point-must system enforced in Nevada (and pretty much everywhere else). (01:30:25)
Factual error: Sharpe follows a wagonload of powder kegs into the Western Gatehouse, then down a corridor lit with torches, to the end of the corridor where Indians were tying together quickmatch, once again by torchlight. With the propensity for powder kegs to leak, even an Indian subadar would use closed lanterns.
Factual error: When the girls go to their motel rooms before the regionals, they exclaim over the color TV in the room. However, that TV has a digital tuner, not available in the mid-60s.
Factual error: The drum kit that Courtney plays at the concert is wrong. It has too many cymbals, two bass drums (one is unneeded) and she didn't kick the pedals to play the bass drum and cymbals.
Factual error: Traveling to Bethlehem Joseph buys a fish. It looks like a carp or catfish which were deemed unclean.
Factual error: At one point, a screencast of a computer screen shows a video of Barry Brickman on the desktop environment of Windows XP (operating system, developed by Microsoft, released in 2001). However, the app that plays the video is QuickTime for Mac (which runs on Mac OS only), not QuickTime for Windows (which runs on Windows XP). These two versions of QuickTime are almost identical in every respect, except for their title bar (the narrow horizontal area above the video). (00:19:15)
Factual error: Jasper is implied to live somewhere south/southeast of London, however when Theo meets him at the railway station signs can be seen reading "Alresford", the filming location, which is in Hampshire and too far west to be a plausible meeting place.
Factual error: When the Toad's foot breaks the pipe of liquid nitrogen, it should have frozen the water immediately, but it takes a lot more time to allow the wave to get closer.
Factual error: There are numerous rusty warning signs around the test sites from the Department of Energy. The DOE wasn't created until 1977 but the tests occurred from 1945 to 1962. They should have read Atomic Energy Commission (AEC). (00:06:40)
Factual error: During the "University Challenge" competition: Brian answers a question with "Calcium Sulphite" and the question-master says he gave the correct answer of "Calcium Sulphate" (a different compound).
Factual error: The movie is set in 1983, but small satellite dishes seen attached to homes were only available around 1989 when Sky was introduced, and the even smaller sizes visible on some homes did not exist until many years later.