"You're going out there a youngster, but you've got to come back a star!" The film that launched the Golden Age of Hollywood musicals, 42nd Street traces the creation of a Broadway show from its first casting call through its blockbuster opening night--when the leading lady twists her ankle and a young chorus girl (Ruby Keller) takes her place and becomes a star. Starring Ruby Keeler and Dick Powell, and featuring Ginger Rogers and choreography by Busby Berkley.