Trivia: In the scene where Anna is outside the gates during "For The First Time in Forever", you can see the backs of Flynn and Rapunzel from "Tangled".
Trivia: In the beginning of the movie, when the candy store owner is singing the candy man song, there's a spot towards the end of the song where he lifts up his counter to let all the kids in. Watch the little blonde girl as she gets walloped in the chin by the counter. (00:04:30)
Trivia: This was Johnny Depp's first movie.
Trivia: When the movie was first shown in theaters, the marquee read, "From the director of Animal House...A Different Kind of Animal." This lead many movie patrons to believe that it was another comedy film. People ran out of theaters in terror when they realised it was a horror movie.
Trivia: According to the Guinness Book of Records, the Lord of the Rings holds the record for the greatest number of false feet used in one movie: 60,000.
Trivia: When the Grinch takes the table cloth from the table, everything on the table was supposed to fall off. When Jim Carrey yanked out the cloth however, everything stayed in place. Jim immediately walked back to the table and improvised knocking everything off and then knocking the table over.
Trivia: Professor Marvel, the Cabbie, the doorman, the guard, and the wizard himself are all the same actor, Frank Morgan.
Trivia: Writer Bruce Rubin's mother has a cameo in this movie. She portrays the nun who collapses after seeing how much money is on the check.
Trivia: Spoilers! Red Skull makes his long-awaited return to the MCU after his appearance in Captain America: The First Avenger. We discover that he's been guarding the soul stone as punishment, of sorts. However he's played by Ross Marquand, not Hugo Weaving.
Trivia: In the comics Falcon has taken on the mantle of Captain America before.
Trivia: When Gordon is promoted to Commissioner, Heath Ledger improvised the Joker joining in with the applause.
Trivia: A little foreshadowing - when the King first goes to the Poison Apple pub, a frog with ruby red lips asks him if she has met him before.
Trivia: When Neville receives a Remembrall from his grandmother, it glows red to inform him that he forgot something. Neville says that he can't remember what he forgot. If you look closely, Neville is one of very few students not wearing his robe. He most likely forgot to put his robe on.
Trivia: While giving a lecture at the Hollywood Scriptwriting Institute, director Joe Dante trash talked the novel "The Howling" on which the movie is based. One person in the audience raised his hand and asked, "So, you don't like the book, huh?" with Joe stating, "No, not really." The man responded that he was the one who wrote the novel. To Joe's surprise, the man in the audience was Gray Brandner, the author of "The Howling."
Trivia: Music composer John Williams has a cameo as a bartender on the planet Kijimi.