You Light Up My Life is a 1977 American romantic drama film written, produced, scored, and directed by Joseph Brooks. It stars Didi Conn, Joe Silver, and Michael Zaslow. The film follows a young singer and songwriter, feels obligated to follow her father's borscht belt comedian career. She struggles to get small time acting work in advertising and children's shows with her fellow acting friends in Hollywood and shows marginal talent in standup comedy. Her happenstance meeting with a young director will set the stage for a series of conflicts with her fiancé, father and career decisions.