Factual error: If there was that much of a famine in the pack, the Omega wolves would surely have already died of hunger.
Factual error: Apparently, Ratigan had to cross the River Thames to reach Big Ben from Buckingham Palace as evidenced by him tossing Fidget into the river before taking reign of the blimp. However, the two landmarks are on the same side of the river.
Suggested correction: Ratigan changed direction multiple times during the chase because he was trying to get away from Basil. He may have flown away from that side of the river, but then after changing direction he flew across to the side he came from again.
Factual error: At the beginning of the cartoon, Junior is reading a Bugs Bunny strip on his father's newspaper. Later on in the cartoon, Henry discovers that the newspaper he was reading was dated in the year 1928. This is ten years before the Bugs Bunny character was created.
Factual error: Towards the end of the movie when Superman and Henshaw are fighting on the Watch Tower in space, Lois hits the sun shades to lower them so that direct sunlight can hit Superman and power him up. This is out in space with no atmosphere to filter the sunlight. The reason the blockers were there was for this reason, to keep the harmful unfiltered sun light from hitting people on the ship through the windows. However, she is able to stand there in the direct light after it's done and kiss and hold Superman without being hurt or burned by the intense direct unfiltered sunlight or its radiation.
Factual error: The female Frankenstein tries to set Dracula up with during the wedding reception is referred to as his "right arm's cousin" but the big arm that looks like Frankenstein is her right arm. (00:08:10)
Suggested correction: Frankenstein wasn't saying she had the other half of his right arm (i.e. his left arm), just that the 2 arms came from 2 people who were cousins.
Factual error: When the magician has brought the crocodile home at the beginning of the movie and is trying to get him to sing, the crocodile is shivering because he's cold. The magician wraps him with a scarf and the crocodile warms up and is willing to sing. However, this would not work, as crocodiles are cold-blooded and unable to generate body heat. The crocodile would need a heat lamp or some other source to become warm again.
Factual error: During the escape from the farmers market a red London bus is in the background. Those busses aren't used in Gloucester.
Factual error: When the Fat Controller arrives at Tidmouth Sheds, Tidmouth Sheds appears to be missing from the reflection.
Factual error: Leo says he smells potato, but he is in a space suit and in space, making it impossible for him to smell it. (00:33:00)
Factual error: When Jeremy and Jack climb the beanstalk and arrive on the clouds, it starts to rain. Where is the rain coming from?
Factual error: When the camera pans to the theatre right after the opening credits, the sign uses the British spelling of "theatre" instead of the American "theater."
Factual error: When Ryan is live streaming his magic show, the amount of likes is always way higher than the amount of viewers, which is quite impossible. (00:01:07)
Factual error: When Tom is singing "If You're Ever Down In Texas" to the cowgirl, Jerry winds the crank on the Victrola counter clockwise.
Factual error: When the stork is flying to deliver Dumbo, the map shows the state of Kentucky above Alabama and Mississippi instead of Tennessee. (00:07:15)
Factual error: When the Level 2 Sentry gun begins firing, you can see Shotgun shells falling out of it instead of the usual ammo casings. (00:00:40)