Once More, with Feeling!

Once More, with Feeling 1960 is a British comedy film directed and produced by Stanley Donen from a screenplay by Harry Kurnitz, based on his play. The film was released by Columbia Pictures and has music by Franz Liszt, Ludwig van Beethoven, and Richard Wagner, arranged by Muir Mathieson. The cinematography was by Georges Prinal and the costume design by Givenchy.

Egomaniacal and temperamental Victor Fabian is the London Festival Orchestras conductor. His wife Dolly is a harpist who acts on her husbands behalf, presenting his impossible demands to the symphonys backers, only to then find him dallying with a considerably younger musician. Dolly decides to leave him, whereupon he destroys her harp.Victors conducting suffers in Dollys absence and the orchestra needs her back. His agent, Max Archer, tries to get him a new contract, but young Wilbur, son of the orchestras patron saint, insists to Victors horror that any agreement must include a performance of his mothers favorite piece of music, John Philip Sousas Stars and Stripes Forever. ........

Source: Wikipedia