Question 11

The following fact was mentioned during the MGM Studios fireworks show Sorcery in the Sky:

"Walt Disney had long dreamed of taking the art of animation beyond that of a simple moving comic strip.  On the eve of November 13th, 1940, and in the very same theater where Mickey Mouse made his debut only a dozen years before, Walt's dream finally came true.  A three year effort to marry film graphics to classical music had been completed just two days before its world premiere.  The New York Times called the result "Motion picture history.  Simply terrific!"  The film was _______?