Factual error: In the scene after Chan and Wilson crash their car into Stonehenge they walk away and the view is of a field and a beautiful blue sky. In the sky you can see an airplane vapour trail up on the left hand side of the screen. There were no airliners in 1890. (00:58:50)
Factual error: In the final scene where Congress is supposedly passing the bill, they are still in the committee room. Bills are not passed there, but in the actual meeting halls of the House and the Senate.
Factual error: Dr. Dolittle is driving through San Francisco with a cup of Dunkin' Donuts coffee - there are no Dunkin' Donuts in San Francisco.
Factual error: If the access hatch to the nose wheel well on an airliner was opened at any time during the take off run every alarm panel in the cockpit would light up like a Christmas tree. The pilot would immediately abort take off.
Factual error: Near the end of the movie, as the money train is approaching the passenger train, the motorman is communicating on the microphone with dispatch. If you notice, as he is talking, his hand is NOT on the throttle. On the trains in the NYC subway system if the throttle is not depressed the train will stop.
Factual error: In the scene where Tom and Sarah are in the French castle, there's a flag hanging in the background. This is the official flag of the Austrian province of Tyrol although the whole scene plays in France. (00:36:45)
Factual error: Near the beginning of the film, Calico is sitting with a cat on his right shoulder. Their reflection is shown in the glasses of a man directly opposite. The reflection shows Calico and the cat in the same position instead of being reversed, as a reflection would be. (00:04:30)
Factual error: When the whole Banks family sits down to dinner, George asks 'Who wants to go to a Laker game on Thursday?' According to the timeline of the film, this is sometime in August, and the Lakers are in off-season.
Suggested correction: When George goes to the grocery store, you can see Halloween decorations.
Factual error: The Lyceum Theatre, referenced in the film, did not exist in 1828 as it was not built until 1834.
Factual error: Inga comes from Gettzemüllersteigen, Sweden. However the Swedish alphabet does not contain the letter ü. Also the combination of the letters in this name would never occur in the Swedish language, rather in German languages.
Factual error: When Syd throws the pistol to detonate the landmine, nobody in the nearby vicinity seems to be injured except one 'bad guy' despite the fact that many modern anti-personnel mines project shrapnel to a radius of 30 meters. (02:17:35)
Factual error: When the evangelist first enters the mansion, Mrs. Peacock calls him a beatnik. However, the movie is set in 1954, and the word "beatnik" was not coined until 1958. (01:15:25)
Factual error: When they show the capital building in Washington DC it is still under construction, but it was actually finished in 1864 - 5 years before the movie's set.
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: When there's a fight on the cabriolet between Jackie and one of the two bandits - when the car smashes into the fuel truck, the fighting bandit somehow flies backwards where according to the laws of inertia he should have flown forwards.
Factual error: The baby is expanded to approximately fifty times his height, width and girth but it's explicitly stated that he retains his orginal mass. This means he will have the same volume as one hundred and twenty five thousand babies of his original size, but will weigh the same as before he was enlarged! That child is going to weigh much less than the volume of air he displaces. He's going to float away.
Factual error: In one scene supposedly set in the late '70s (Andy was about to get/just got "Taxi"), Andy is playing Ms. Pac Man. I may be wrong here, but didn't Ms. Pac-Man come out in 1982 or 1983? (00:29:30)
Factual error: The flag of Spain shown at Cape Canaveral is not the official one used in 1969 but the one adopted in 1981. (01:19:50)
Factual error: As the Thug Zombie is on top of the lawnmower and is getting hacked to bits, his body parts don't fly off. His arms would've gone everywhere when the blade reached his shoulders, and the same goes for his head. (01:29:15)
Factual error: Porter cuts the fuel line on the car but in reality, fuel lines are mostly steel except for a few joints which are only a few inches long. There would be no rubber tube long enough to be cut as shown in the film. (01:01:30)