Walt Disney and Mickey Mouse statue inside of the Magic Kingdom theme park| Photo by Roberto Machado Noa/LightRocket via Getty Images An 1860 lithograph by Currier & Ives showing a scene from The Song of Hiawatha by Henry Wadsworth Longfellow ‘The Rainbow Road to Oz’ He initially intended to purchase the rights to the first Oz book, The Wonderful Wizard of Oz, and make it into the first full-length Disney film. Instead, MGM purchased the rights to the book and the rest is film history. Following the death of Baum’s widow in 1953, Walt purchased the rights to eleven of the fourteen Oz books that Baum had written. Walt was going to make a film called The Rainbow Road to Oz starring Annette Funicello as a princess and featuring other Mouseketeers in supporting roles. A preview of the film was released to television but the project was never completed, possibly because Walt was too busy working on Sleeping Beauty at the time. ‘Don Quixote’ After abandoning that adaptation of Don Quixote, he decided that it would be better for him to make the novel into a short, before abandoning the short as well. The idea of adapting Don Quixote was considered one final time in 1951. Then, Walt toyed with the idea of adapting the novel into a film with a simplistic animation style, a sharp contrast to Don Quixote‘s complex themes. The studio has never attempted to adapt the novel again.