Continuity mistake: When Fairy Godmother is throwing the books behind her, the book "Snow White" lands on the other books. "Snow White" noticeably changes position between two shots. (00:41:15)
Continuity mistake: In the scene where Mindy is showing Spongebob and Patrick "Planktopolis," it shows a large fully-built statue of Plankton. A few seconds later the right side of the head is shown missing and still being worked on.
Factual error: When hero boy and girl and Billy are on the runaway car at the north pole, they crash into the stopper at the end of the tracks. They are flung backwards when in reality, due to inertia, they should have been flung forward into the guard rail.
Continuity mistake: When Lucius is putting aftershave on in front of the mirror, he hears the robot outside and runs to the window, leaving the bottle of aftershave on the desk with the lid off. He returns to open the drawer, and the lid is back on. (01:29:00)
Other mistake: When Timon meets Rafiki for the first time, Rafiki is hanging upside down, yet his beard is not affected by gravity and remains pointed upwards.
Factual error: In the scene where the fireflies light the fireworks there is one problem: The chemical that creates light wouldn't ignite the wick on a firework.
Continuity mistake: When Oscar is at Sykes' desk he throws a load of documents at Oscar and when he piles the up in the first shot there are very few, but in the second shot there are three times as many. (00:13:10)
Continuity mistake: During Gary's speech at the end, in one scene his hair is messy, but as the camera angle changes it is straightened again.
Factual error: The Great Exhibition was held in 1851, roughly 15 years before the film takes place.
Continuity mistake: In the car chase scene with Deunan and Hitomi, the chasing car crashes into a water melon sales stand. The car is splattered with water melon pieces and goo. The camera then cuts to Deunan and Hitomi and back, and the chasing car is clean again.
Continuity mistake: When Howl first flies with Young Sophie, he wears a ring on each hand. As they take off, one of the rings momentarily vanishes.
Other mistake: In the Arena Challenge scene, Nokama yells at Vakama to shoot the statue. In this shot, the back of her head passes through her armor, which cannot be possible with the actual Nokama figure. (00:21:49)
Plot hole: In the scene where the Sheriff stops the cows' brawl, he gives them to the Chinese man. The Sheriff knows what Pearl's animals look like, so why didn't he recognize the cows as Pearl's?
Continuity mistake: When Tony is walking alone after his first match before he sits on a railing, the centre building has the items on top changing between shots. (00:28:11)