"The Marx Brothers help young Broadway hopefuls when they get mixed up with gangsters due to a tin of sardines containing Romanoff diamonds."
Groucho Marx
as Sam Grunion
Harpo Marx
as Harpo
Chico Marx
as Faustino the Great
Ilona Massey
as Madame Egelichi
Vera-Ellen
as Maggie Phillips
Marion Hutton
as Bunny Dolan
Raymond Burr
as Alphonse Zoto
Melville Cooper
as Lefty Throckmorton
Paul Valentine
as Mike Johnson
Bruce Gordon
as Hannibal Zoto
Marilyn Monroe
as Grunion's Client
Leon Belasco
as Mr. Lyons
Eric Blore
as Mackinaw
Otto Waldis
as Ivan (uncredited)
David Miller
Director
Norma Koch
Costume Design
Grace Houston
Richard Bachler
Wardrobe Supervisor
Howard A. Anderson
Visual Effects
Fred B. Phillips
Makeup Artist
Harry Geller
Orchestrator
Casey Roberts
Set Decoration
Scotty Rackin
Hairstylist
Billy Daniel
Choreographer
Ray Heinz
Production Manager
Ben Hecht
Additional Writing
Mary Pickford
Executive Producer
Gabriel Scognamillo
Art Direction
Ann Ronell
Original Music Composer
Albrecht Joseph
Editor
Lester Cowan
Producer
Basil Wrangell
Mac Benoff
Screenplay
Story
Frank Tashlin
William C. Mellor
Director of Photography