The Phantom Tollbooth is a 1970 American live-action/animated fantasy film based on Norton Juster's 1961 children's book of the same name. Produced by Chuck Jones at MGM Animation/Visual Arts, the film stars Butch Patrick as Milo, alongside the voice talents of Mel Blanc, Daws Butler, Candy Candido, Hans Conried, June Foray, Patti Gilbert, Shepard Menken, Cliff Norton, Larry Thor, and Les Tremayne. Jones also co-directed the film with Abe Levitow, while Dave Monahan directed the live-action segments. Completed in 1968, the film was held up from release by MGM until late 1970 due to internal studio problems. The animation studio closed soon after the film's release, with MGM leaving the animation business until 1993 with the startup of their new Metro-Goldwyn-Mayer Animation studio.

The Phantom Tollbooth is a children's fantasy adventure novel written by Norton Juster, with illustrations by Jules Feiffer, first published in 1961. The story follows a bored young boy named Milo who unexpectedly receives a magic tollbooth that transports him to the once prosperous, but now troubled, Kingdom of Wisdom. Along with a dog named Tock and the Humbug, Milo goes on a quest to the Castle in the Air seeking the kingdom's two exiled princesses, named Rhyme and Reason. As Milo learns valuable lessons, he finds a love of learning in a story full of puns and wordplay, such as exploring the literal meanings of idioms.