A lot of artists have attempted to embellish The Wizard of Oz, like the musical Wiz from the 1970s or today's Wicked musical on Broadway. Walter Murch is a legendary film editor, perhaps Hollywood's greatest. He made his debut as a director with his own Return to Oz, a dark sequel where Dorothy is given electroshock treatment. Murch describes the small moment at the end of The Wizard of Oz that inspired him.