The original plan for a Magoo feature film was to have him play Don Quixote. They even had Brave New World author Aldous Huxley do a script treatment. However, when they went to the bank to secure financing, no one there knew who Don Quixote was, so they went with a more proven property. Magoo eventually did appear in an adaptation of Don Quixote as an episode of The Famous Adventures of Mister Magoo.
Pete Burness, who directed most of the Magoo shorts, was the original director for 1001 Arabian Nights, but became dissatisfied with how the movie was turning out and left the studio. He was replaced by former Disney director Jack Kinney, who directed most of the Goofy shorts.