Claim: The Wizard of Oz is a production in which music is included in the narrative.
Evidence: The Wizard of Oz is a 1939 American musical fantasy comedy-drama film produced by Metro-Goldwyn-Mayer , and the best-known and most commercially successful adaptation based on the 1900 novel The Wonderful Wizard of Oz by L. Frank Baum.
The musical film is a film genre in which songs sung by the characters are interwoven into the narrative , sometimes accompanied by dancing.