King Wallis Vidor was an American film director, film producer, and screenwriter whose 67-year film-making career successfully spanned the silent and sound eras. His works are distinguished by a vivid, humane, and sympathetic depiction of contemporary social issues. Considered an auteur director, Vidor approached multiple genres and allowed the subject matter to determine the style, often pressing the limits of film-making conventions.

The Wizard of Oz is a 1939 American musical fantasy film produced by Metro-Goldwyn-Mayer (MGM). An adaptation of L. Frank Baum's 1900 children's fantasy novel The Wonderful Wizard of Oz, it was primarily directed by Victor Fleming, who left production to take over the troubled Gone with the Wind. It stars Judy Garland, Frank Morgan, Ray Bolger, Bert Lahr, Jack Haley, Billie Burke and Margaret Hamilton. Noel Langley, Florence Ryerson and Edgar Allan Woolf received credit for the screenplay, while others made uncredited contributions. The music was composed by Harold Arlen and adapted by Herbert Stothart, with lyrics by Edgar "Yip" Harburg.