The musical film is a film genre in which several songs sung by the characters are interwoven into the narrative. The songs are used to advance the plot or develop the film's characters. A subgenre of the musical film is the musical comedy, which includes a strong element of humour as well as the usual music, dancing and storyline.

The musical film was a natural development of the stage musical. Typically, the biggest difference between film and stage musicals is the use of lavish background scenery which would be impractical in a theater. Musical films characteristically contain elements reminiscent of theater; performers often treat their song and dance numbers as if there is a live audience watching. In a sense, the viewer becomes the deictic audience, as the performer looks directly into the camera and performs to it.