The Wizard of Oz is a 1939 American musical fantasy film produced by Metro-Goldwyn-Mayer. Based on the 1900 novel The Wonderful Wizard of Oz by L. Frank Baum, it was primarily directed by Victor Fleming, who left production to take over the troubled Gone with the Wind. The screenplay is credited to Noel Langley, Florence Ryerson, and Edgar Allan Woolf, but includes contributions from other writers. The film stars Judy Garland, Frank Morgan, Ray Bolger, Jack Haley, Bert Lahr, Billie Burke, and Margaret Hamilton. The music was composed by Harold Arlen and adapted by Herbert Stothart, with lyrics by Edgar "Yip" Harburg.