Duck Soup is a 1933 comedy film written by Bert Kalmar and Harry Ruby, with additional dialogue by Arthur Sheekman and Nat Perrin, directed by Leo McCarey. Released theatrically by Paramount Pictures on November 17, 1933, it starred the Marx Brothers (Groucho, Harpo, Chico, and Zeppo) and also featured Margaret Dumont, Louis Calhern, Raquel Torres and Edgar Kennedy. It was the last Marx Brothers film to feature Zeppo and the last of five Marx Brothers movies released by Paramount Pictures. Groucho plays the newly installed president of a fictional country, and Zeppo is his secretary, while Harpo and Chico are spies for a rival country's ambassador. Relations between Groucho and the foreign ambassador deteriorate during the film, and they go to war at the conclusion.