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: Jeremy Sumpter (Peter Pan) had to go through 6-7 months of flying practice before he could start "flying" in the film.
Trivia: The line "Hold on to your butts" said by Samuel L. Jackson is also said by him in Jurassic Park.
Trivia: Director Jason Reitman is the son of Ivan Reitman, director of the original "Ghostbusters" and "Ghostbusters II." As a child, Jason actually had a cameo in "Ghostbusters II" during the birthday party in the beginning. (He's the kid who tells Ray he heard the Ghostbusters were "full of crap").
Trivia: When Hagrid is welcomed back to Hogwarts and everyone stands up and applauds, Vincent Crabbe also stands up and starts to applaud as well. This wasn't in the script and Tom Felton, staying in character, quickly grabbed Jamie and pulled him back down.
Trivia: Music composer John Williams has a cameo as a bartender on the planet Kijimi.
Trivia: In the scene of Missy's funeral, Stephen King plays the priest.
Trivia: Johnny Depp uses the phrase "Interesting..." as his trademark in many of the movies he stars in, including Sleepy Hollow. He uses it in PotC when Koehler's skeletal hand tries to grab him in prison.
Trivia: Johnny Depp passes an old bald man with hippy glasses sitting down surrounded by women - this is author Hunter S. Thompson himself in a cameo.
Trivia: All of the creatures in baby Rapunzel's mobile are referenced later in the movie. The blue bird is the first creature she encounters after leaving the tower (it flies around her head when she sings "completely free"). There is also a white horse (Maximus), a chameleon (Pascal), a yellow duck (The Snuggly Duckling), and a cherub (the old man who dresses like an angel in "I've got a Dream").
Trivia: In order to acquaint himself with his three lead actors, director Alfonso Cuaron had each of them write an essay about their characters, from a first-person point of view. Emma Watson, in true Hermione fashion, went a little overboard and wrote an 16-page essay, Daniel Radcliffe wrote a simple one page paper, and Rupert Grint never even turned his in, as he said that is what Ron would have done.
Trivia: When Billy Dee Williams (Lando) picked up his daughter from elementary school after the film's release, kids would run up to Williams and say "You betrayed Han Solo!"
Trivia: Tippi Hedren actually received a cut on her face by a bird in one of the shots.
Trivia: Although they play mother and son in this film, Bryce Dallas Howard is only eight years older than Taron Egerton.