Which one dates back further, the film Emil and the Detectives or the Magic Kingdom theme park?
Emil and the Detectives (1964 film): Emil and the Detectives is a 1964 film directed by Peter Tewksbury based on the novel by German author Erich Kästner. Magic Kingdom:  Owned and operated by The Walt Disney Company through its Parks and Resorts division, the park opened on October 1, 1971, as the first of four theme parks at the resort.
Emil and the Detectives