Factual error: The movie takes place in 1868, and every guy and his dog are wielding cartridge conversion Army, Navy, and even what appears to be Walker colts. Unfortunately, such conversions were not performed until 1869, after Smith and Wesson's rights to the Rollin White patent expired.
Factual error: When Eddie and Jack are in the ambulance you see a curtain over the window behind Jack. This would be a MAJOR infection control/sterility issue and therefore no ambulances have curtains, especially linen.
Factual error: In the parking lot of the race track, as the camera zooms out you can see a new Ford Thunderbird. This is impossible, as the scene takes place in 1979.
Factual error: In one of the opening scenes, when Queenan and Dignam are first interviewing Billy Costigan and Colin individually, Dignam refers to himself as a "staff sergeant." However, the Massachusetts State Police has not had staff sergeants since 1992.
Factual error: The guy who is invisible is ran down by a car while running after the cop and the scientist. He is shown getting up covered in blood. Everything about him is invisible which includes his blood. It shouldn't have been visible after the accident.
Factual error: On the way into the health spa, Wilberforce's friend says they should hurry or they'll be late. Wilberforce replies "the waters have been here for a million years - how could we be late?". In the late 1700s, no-one in Europe thought the world was that old.
Factual error: You can see on the text message "20h48." But she receives this message during the afternoon (the time is incorrect). (00:27:35)
Factual error: While the film is supposedly set in the late 19th Century, the locomotive is oil-fired. The tender carries neither wood nor coal. There is no way the Mexican National Railroad would possess oil-burning locomotives in this time period.
Factual error: During the movie the Germans are more then once using halftracks of the type sonderkraftfahrzeug 251, which originally were only allowed to be used by panzerdivisionen (armored divisions), and at the moment the movie is supposed to take place, there were no panzerdivisionen in Holland.
Factual error: As Augusten Burroughs is taken to his mother's physician's home to stay, he notices Dr. Finch's wife, Agnes, intently watching the vampire soap opera "Dark Shadows." However, the year has been previously indicated as 1978 and Dark Shadows ran before that, from 1966 until 1971, so it couldn't have been on television.
Suggested correction: Dark Shadows would have been running in reruns at that time.
Factual error: General Fury incorrectly uses the DEFCON System. When all of S.H.I.E.L.D's secrets are revealed to the Chitauris, Fury moves to DEFCON 4, which is peacetime with increased intelligence and security. When the threat increases and Chitauri ships are approaching, Fury moves to DEFCON 5, which indicates peacetime. In the DEFCON system, lower numbers indicate higher threats.
Factual error: When the Empress is dressing for the Chrysanthemum festival, bobby pins and hair pins are visible in her hair, not made available until the 20th century.
Factual error: To demonstrate his hatred of the England football team, Paul throws darts at a photograph of the players in their red shirts midway through the competition. However, the photo in question was taken after the final was played. Furthermore, in relation to the film's timescale, when the scene takes place neither the team or the choice of kit had been decided upon.
Factual error: Ron Clark was from Aurora North Carolina. The shot where he is leaving for New York is supposed to be in Aurora, which is in Eastern North Carolina. The shot shows a house with lots of spruce trees around it. We don't have those in Eastern North Carolina.
Factual error: In the beginning when the animals are waking up from hibernation, it shows Ozzie and Heather running out of the log, which shows they hibernated, but opossums don't hibernate.
Factual error: A soccer game does not end on a goal. The ball is always returned to the middle of the pitch for a kick-off, after which the game is ended by the referee. It is also highly unlikely no overtime is given in this game, seeing the number of interruptions.
Factual error: Jerry says that Flynn argued with Stephen Hawking regarding the thesis of Hawking's book when Flynn was only nine years old. However, Flynn celebrates his 32nd birthday in the movie in 2006, meaning he'd have been 9 in 1983 and 1984, while Hawking's first book, A Brief History of Time, wasn't published until 1988.
Factual error: When Gray gives her dead boyfriend's friend her boyfriend's old high school T-shirt, he puts it on, you can see that it is a "tagless" T-shirt. You can see the imprint of the "tag" through the shirt. Those kinds of tags were not used when they were in high school that many years ago.
Factual error: When Arthur is in the bar, the music is chronologically out of order. The film is set in the fifties. One of the songs playing is Staying Alive from the seventies.
Factual error: As Christian Bale's Skyraider releases rockets, at first they drop like bombs. In real life, rockets shoot away instantly, at an almost straight line from the launching plane, never falling like bombs.