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: Revealed in behind-the-scenes info, Chef was originally going to have a song called "Bringing Back Happy," explaining to the Trolls about her depressing years of unsuccessful hunts for them and how she would "bring back happy" by cooking them. However, this idea had to be scrapped due to timing issues.
Trivia: The first time we see Hank the octopus, he is pulling Dory's tank toward him. If you look at the wall just before he does this a picture of Darla, the villain from 'Finding Nemo'.
Trivia: When an evil truck driver sees and crashes into a large rock during the climatic chase scene, he yells a Wilhelm scream.
Trivia: When one of the Galactic Rangers' robots falls off a platform, he yells a Wilhelm scream.
Trivia: This is the only movie of the series where Scrat never interacts with the main heroes.
Trivia: When two food products run for cover during the end of Firewater's and the Non-Perishables "Great Beyond" belief story, you can hear the Wilhelm scream.