Snow White and the Seven Dwarfs (1937 film) January 11 to March 9, 1980, a total of 106 performances. In the 2000s, DisneyToon Studios began development on a computer-animated prequel to "Snow White and the Seven Dwarfs", titled "The Seven Dwarfs". Director Mike Disa and screenwriter Evan Spiliotopoulos pitched a story explaining how the Dwarfs met, and how the Evil Queen killed Snow White's father and took the throne. According to Disa, DisneyToon management changed the prequel to center around how Dopey lost his voice upon witnessing the death of his mother. After Disney purchased Pixar in 2006, John Lasseter, DisneyToons' new Chief Creative Officer, canceled "Dwarfs". In
Aurora (Disney) Walt Disney had long been struggling to adapt the fairy tale "Sleeping Beauty" into a full-length animated film for several years, intending to base the project on both Charles Perrault and the Brothers Grimm's versions of the story. Disney was considering abandoning work on the film altogether until singer Mary Costa was discovered, the casting of whom as the film's heroine finally allowed the project to graduate from development to production. At the time Aurora was conceived, there had only been two prior Disney princesses: Snow White and Cinderella, the heroines of Disney's "Snow White and the Seven Dwarfs" (1937)