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: 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: 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: 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: 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: Elaine (the stewardess) is looking for a doctor. She finds Dr. Rumack who's wearing a stethoscope. He has it on backwards. The earpieces should point forward - his are pointing backward.
Factual error: There appears to be a pickup truck parked by a barn in the background when Steve McQueen is standing by his horse, talking to Linda Evans. (00:19:00 - 00:20:00)