Factual error: Listening to a radio broadcast, live, since no other indication is given, Joe Louis is completing the 12th round of a fight. This is December 6, 1941. Joe's last fight of 1941 occurred in September, his next fight was January 1942. (00:00:10)
Factual error: At the climax of the movie, Alice swings the machete at Mrs. Voorhees and decapitates her. When the blade makes contact with Mrs. Voorhees' neck, her head flies off at an incorrect angle, as though the cut began on the opposite side.
Factual error: The sun can't rise out of the Pacific ocean when viewed from America, as seen when Danny is playing the clarinet. (00:01:20)
Factual error: Legitimate religious institutions are not subject to property taxes.
Factual error: In scenes that take place in 1912 on the porch of the hotel you can sometimes see American flags in the background. The flags in the movie have 50 stars. The 50 star flag wasn't adopted until after 1959. (01:25:15)
Factual error: The first thing on screen after the opening credits is the year the film is set in, 1953. How then, do Kim Novak and Tony Curtis make their arrival in a Cadillac convertible, which is quite obviously of 1959 vintage? (00:19:44)
Factual error: When Loretta and Patsy return from shopping, and Doolittle gets mad about the makeup Loretta is wearing, look closely after they leave Doolittle and you will see a 1965 LeMans among the parked cars. Patsy Cline died in 1963.
Factual error: The Bandit is in a showdown with Buford T. Justice in a desert mountain range shortly after crossing into Texas. There are no desert mountain ranges in eastern Texas.
Factual error: At the end of the movie there is the chase scene through the hedge maze in the dead of winter in Colorado. While Jack Nicholson runs after his son in a winter setting you cannot see their breath in what would be the cold night air.
Factual error: After Superman accidentally frees the phantom zone villains with the exploding hydrogen bomb, they start flying towards the moon. The sleeves in their clothes can be seen fluttering around. This would be impossible because there is no air in outer space, hence nothing to cause resistance against the clothes.
Factual error: When the tape is inserted into the player, "California Dreamin'" comes out of the speakers...not in October 1965. That single wasn't even recorded until later that year, with the album released the following year. Only albums and compilations were recorded on 8-tracks, and neither would have been on that tape.
Factual error: A film about the making of a film. A car is filmed going off a bridge, and the footage is played back repeatedly. Throughout, the car is referred to as a Duesenberg, even though, in nearly every shot, the Mercedes tri-sected circle logo is visible above the radiator.
Factual error: Despite being on an island for a long time, Emmeline has no body hair anywhere.
Factual error: When Chong is playing his guitar, using a monkey wrench as a slide, he moves it the wrong direction on the neck of the guitar to make the sounds coming from the guitar.
Factual error: During all the major battle scenes involving tanks the Germans are using post-WWII tanks. The turret looks a bit like the M10 Wolverine with a top cover.
Factual error: At the end of the movie, they break out of prison and their lawyer finds them at the hangar. She tells them they are free and they celebrate and get in the car and drive off. Innocent or not, they broke out of prison. I highly doubt red tape would allow an official to say, "Oh well, never mind, we were gonna release them anyway." (01:46:25)
Factual error: The older woman, Grace, tells Susan Sarandon's sister that both their husbands died from being shot. Susan Sarandon's sister's husband was not shot, he was stabbed to death.
Factual error: The film takes place in Kansas, reprising the original "High Noon", yet during the chase, both the pursuers and pursued wend their way through Saguaro cacti, only found in Arizona.
Factual error: A solid gold cross of the size used in the film would weigh more than what any human could hold in front of them (nearly 200kg), much less as "easily" as the priest did at the end of the movie.
Factual error: The middle third of the film recounts Dr. Thompson meeting Laszlo at the 1972 Superbowl (VI) in Los Angeles, however, in 1972 the game was played in New Orleans.