Monkey Business (1931 film) Chico give opera singer Madame Swempski (Cecil Cunningham). According to Turner Classic Movies' Robert Osborne, a sequel was planned for this film that would continue the gangster theme. During the development of that film, aviator Charles Lindbergh's son was kidnapped and killed by what was believed to be gangsters. The writers quickly shifted gears and based the brothers' next film very loosely on the Marx Brothers' earlier stage show "Fun in Hi Skule", which would evolve into "Horse Feathers". Monkey Business (1931 film) Monkey Business is a 1931 American Pre-Code comedy film. It is the third of the Marx Brothers'
Monkey Business (1931 film) four stowaways because he can hear them singing "Sweet Adeline".) If so, it would be one of only a few times Harpo used speech on screen, as opposed to other vocalizations such as whistling or sneezing. At least one other possible on-screen utterance occurs in the film "A Day at the Races" (1937), in which Groucho, Chico, and Harpo are heard singing "Down by the Old Mill Stream" in three-part harmony. This was the first Marx film to be written specifically for film, and the first shot in Hollywood. Their first two films were filmed at Paramount Pictures' Astoria Studios