Revealing mistake: During Jack's memories, when he is holding the antlers up to his head, Jack's sister's boot can be seen coming through the fabric of her dress.
Rise of the Guardians (2012)
1 revealing mistake - chronological order
Directed by: Peter Ramsey
Starring: Alec Baldwin, Hugh Jackman, Chris Pine, Isla Fisher
Factual error: In the beginning where Tooth is sending her fairies to various regions, she sends a few to Moscow, stating that there are "22 incisors and 18 premolars" that need collecting. Premolars are not baby teeth; they are permanent adult teeth. (00:06:10)
[The Easter Bunny comes out of the rabbit hole to arrive at The North Pole, looking heroic.]
Bunny: Oh, it's freezing!
More questions & answers from Rise of the Guardians
Answer: Jack is the guardian of fun. It's stated in the film.