Other mistake: Anna is shown from the front as she ascends an ice staircase inside Elsa's ice castle. There are giant ice pillars to Anna's right and left. They should reflect the side of her face, but instead the reflections show her face from the front.
Suggested correction: That's not how reflections work. The ice walls are about two feet to her side so the reflection would look like it was shot from the front but about 4 feet to the side.
Other mistake: Sam draws an orange vest for Lockwood using a dark crayon. (01:10:45)
Other mistake: In the cupcake shop, Lucy crushes several cupcakes. These cupcakes have icing on them. But no icing goes on Lucy's hands at all. (00:24:35)
Other mistake: Towards the beginning of the film, the teacher counts 19 students then says one is missing, implying there are 20 (including Mike) However, Mike ends up being paired with the teacher, despite there being an even number of students and therefore everyone should have a partner.
Other mistake: In the hotel, the gang are putting together a list of suspects trying to figure out who the Phantom is. They mention 5 suspects, Chrissy's parents, Brick Pimiento, Mel Richmond, Dewey Ottoman, and Lotte. When they look at the list though, only 4 pictures are shown. Chrissy's parents are not there, yet they were the first to be mentioned. (00:25:35)
Other mistake: In the regional qualifier, there are five planes with better times than Dusty. Fonzerelli is disqualified. So... How come the other four that qualified don't show up in the big race?
Other mistake: Travers arrives in Los Angeles and is seen at the airport and the hotel a short time later with just a small suitcase and a smaller carry-on bag, yet she has far too many clothes-suits, dresses, skirts, sweaters, blouses, sleepwear, shoes, and other accessories-than could possibly fit in them. She is seen leaving L.A. with an additional suitcase, but the third one appears to be one that is just used for carrying the big Mickey Mouse stuffed toy she takes back to London.
Suggested correction: There's nothing saying that she had to have taken all those clothes with her. It's possible that she had more clothes sent on afterwards. Maybe the extra clothes belonged to the hotel/studio etc. Maybe they were rented. Who knows? Just because it's not explained, doesn't make it a mistake.
Other mistake: The head of the animal that Guy is wearing when he first meets Eep is not positioned in a way that he would be able to see out of it when he holds his hands up to defend himself.
Other mistake: It is impossible for Gordon, Edward, and Toby to all puff into the Sodor Steamworks at the same exact time, as there is only one transfer table there.