Louie is named the famous trumpet player Louie Armstrong. Likewise, his sisters Ella and Billie are named after the jazz singers Ella Fitzgerald and Billie Holiday.
Jason Alexander's second theatrically released animated film after The Hunchback of Notre Dame (1996).
Carol Burnett's first theatrically released animated film, later she'd go onto voice Jane "Sour" Kangaroo in Horton Hears a Who! (2008) and Chairol Burnett the preschool chair in Toy Story 4 (2019).
Reese Witherspoon's first time voice acting in a theatrical film, later she'd go onto voice Susan Murphy in Monsters vs. Aliens (2009) and Rosita the Pig in the Sing films.
Crest Animation Productions' last traditionally animated film.