Julian Marsh, a successful Broadway director, produces a new show, inspite of his poor health. The money comes from a rich old man, who is in love with the star of the show, Dorothy Brock. But she doesn't reply his love, because she is still in love with her old partner. At the night before the premiere, Dorothy Brock breaks her ankle, and one of the chorus girls, Peggy Sawyer tries to take over her part.
Featuring incredible dance choreography from the master, Busby Berkeley, 42nd Street was Oscar Nominated for Best Picture and Best Sound, but failed to win either award.