powered by AFI
The opening title card to the film reads "Paramount Presents The Four Marx Brothers in Monkey Business." In a contemporary interview, Norman McLeod mentions that there were up to twelve writers working on this film, and when Eddie Cantor visited the set, he made some contributions. A Film Daily news item notes that Samuel Marx, father of the Marx Brothers, made his film debut at the age of 72 in this film. A modern source reports that he earned $12.50 a day for two days. This was McLeod's first solo directorial work. Although copyright records credit cartoonist J. Carver Pusey as contributing writer, modern sources refute any contribution to the final film by him. Modern sources do credit Nat Perrin as a contributing writer. Thelma Todd also appeared in the Marx Brothers' 1932 Paramount film Horse Feathers. Scenes shot for Monkey Business are included in the 1931 Paramount promotional film The House That Shadows Built.