The Lion King (1994)

Deliberate mistake: At the elephant graveyard, little Simba claws Shenzi in the face. When Mufasa saves Simba from the hyenas, the cuts are gone, a few seconds later. [This was done intentionally, I'm sure, for two reasons. The first being, Disney doesn't let fresh scars linger on the screen too long. Secondly, during that same scene when Mufasa rescues Simba & Nala, he claws Banzai in the rear. To stress the point later in the movie, that severe scar is shown too, but only briefly, it too disappears because of reason 1. Still a "mistake", but there's why.] (00:21:50)

Timon: What do you want me to do, dress in drag and do the hula?

Trivia: In Swahili, 'Simba' means lion, 'Rafiki' means friend, and 'Shenzi' means uncivilized. There are many Swahili references throughout the film, and we can assume it takes place in Tanzania or Kenya, since Mt. Kilimanjaro is shown in several scenes.

Question: We're only told about two males in the pride, Mufasa and Scar. Who was Nala's father? It can't be Mufasa because then she and Simba would either be siblings or half-siblings and they wouldn't have got together. And it can't be Scar because she called him by his name, not Dad, and she and Simba would still have been cousins.