The Queen's Return), an uncanonical continuation of the film, the Queen has survived the fall at the climax of the film and then reverted to her youthful form to cast a curse on Snow White and the dwarfs and their entire forest. The world builder video game Disney Magic Kingdoms includes Snow White, all the Seven Dwarfs, the Queen and Prince Charming as playable characters, as well as attractions such as Magic Mirror on the Wall, Seven Dwarfs' Cottage, Seven Dwarfs Mine Train, and Snow White's Scary Adventures. Radio City Music Hall Stage musical Snow White and the Seven Dwarfs was the first Disney-produced musical on the New York stage. Unknown Mary Jo Salerno played Snow White in the Disney-produced Snow White and the Seven Dwarfs (televised as Snow White Live!) at the Radio City Music Hall. Music and lyrics for four new songs were created by Jay Blackton and Joe Cook, respectively; titles included "Welcome to the Kingdom of Once Upon a Time" and "Will I Ever See Her Again?". It ran from October 18 to November 18, 1979, and January 11 to March 9, 1980, a total of 106 performances. A cast album was issued by Buena Vista Records. Canceled prequel 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's plot 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 The Seven Dwarfs. Exhibition A behind-the-scenes exhibition titled Snow White and the Seven Dwarfs: The Creation of a Classic took place at The Walt Disney Family Museum from November 15, 2012 to April 14, 2013. The event celebrated the film’s 75th anniversary by displaying more than 200 pieces of rare concept art and animation. It also detailed the entire story of the film’s production, its release and the worldwide recognition it has earned through the years. Two extensive companion books, The Fairest One of All: The Making of Walt Disney’s Snow White and the Seven Dwarfs and Snow White and the Seven Dwarfs: The Art and Creation of Walt