Serenade

After a wealthy but fickle woman (Joan Fontaine) discovers a vineyard worker (Mario Lanza) with a beautiful operatic singing voice, she helps make him a star. But when she breaks his heart, causing him to botch his audition for the Metropolitan Opera, he flees to Mexico, where he falls in love with a sweet farm girl. Just when it looks like he will find happiness, his conniving former benefactor tracks him down.