The film features the voices of John Goodman, René Le Vant, Felicity Kendal, Charles Fleischer, Walter Cronkite, Jay Leno, Joey Shea, Julia Child, Kenneth Mars, Yeardley Smith, Martin Short, Blaze Berdahl, and Rhea Perlman. Universal bought the rights to the novel only months after its publication, and Amblimation began storyboarding the adaptation in 1990 during the production of An American Tail: Fievel Goes West (1991).
Produced by Steven Spielberg's Amblimation animation studio and distributed by Universal Pictures, We're Back! A Dinosaur's Story was directed by Dick Zondag, Ralph Zondag, Phil Nibbelink, and Simon Wells from a screenplay by John Patrick Shanley. The dinosaurs are helped along by two runaway children, Louie and Cecilia. They face two major conflicts: an attempt not to be noticed by the public, and to not be exploited by Neweyes' evil twin brother Professor Screweyes, who wants to use the dinosaurs for his circus business. The prehistoric beings have travelled to the present day and become intelligent by eating a "Brain Grain" cereal invented by scientist Captain Neweyes, who wants dinosaurs to be personally seen by children. It depicts four intelligent anthropomorphized dinosaurs, Tyrannosaurus rex Rex, Triceratops Woog, Pterodactyl Elsa, and Parasaurolophus Dweeb, in their journey to the Museum of Natural History. We're Back! A Dinosaur's Story is a 1993 American animated film based on the 1987 Hudson Talbott children's book of the same name and released to theaters on November 24, 1993.