 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 , <unk> ' new Chief Creative Officer , canceled Dwarfs . 
