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: This the first Disney animated feature to show a pregnant woman.
Trivia: Though not revealed in the movie, the Prince's name is Adam. At the New Orleans Disneyworld, the Princess hotel rooms have portraits of each Disney prince. The 'Beauty & the Beast' prince is shown in human form and his name stated underneath as 'Prince Adam.' In addition, the officially licensed Disney Fisherprice 'Little People' sets include 'Belle and Prince Adam.'
Trivia: Disney wanted people to despise Scar, the film's villain, so, during Scar's big song 'Be prepared', they made references to Adolf Hitler. When Scar's army begins to march, they are goose-stepping like Nazi soldiers and have their snouts raised like a Nazi salute (their snouts appear longer here than in any other part of the movie, and pointed to their right). Scar is on a large ledge, which resembles a balcony, much like that used by Hitler - on the side, the rock has a pattern resembling a giant Swastika. And finally, on the ground where the army marches, lines appear. These lines were on the streets of Germany, where the Nazis paraded.
Trivia: If you look closely, there are many "Mickeys" in the scenery. For example, look in the bushes in various scenes and you will see three circles that form Mickey's head.
Trivia: The Zootopia taxicab service is called Thigmo Taxis, which is a pun adapted from the biological term "thigmotaxis," meaning "Movement of an organism toward or away from any object that provides a mechanical stimulus."
Trivia: When making this movie, Walt Disney turned the script into a comic at first and they used these "comic strips" to move around shots and scenes, replace things and generally see what would work or not. This technique is now known as storyboarding and pretty much every single movie production uses it.
Trivia: There is a little reference to the novel One Hundred Years of Solitude by Gabriel Garcia Marquez. Ben, the robot, upon meeting Jimmy says something like "Solitude is great, but 100 years of it..."