Monkey Business (1931 film) in Queens, New York City. Upon alighting from the ship, the Marx Brothers' real life father (Sam "Frenchie" Marx) is briefly seen in a cameo appearance, sitting on top of luggage behind the Brothers on the pier as they wave to the First Mate. Sam Marx was 72 at the time, and the appearance was his film debut. He was paid $12.50 each day for two days work. "Monkey Business" was Norman MacLeod's solo directorial debut. One of the sequences in this film involves the four brothers attempting to get off the ship using a passport stolen from famous singer
The Maltese Falcon (1931 film) in San Francisco. The film closely follows the plot of the book. The 1941 adaptation, which began with a revised version of the 1931 script, closely follows the book as well, although most references to homosexuality, stripping (the missing $1000) and other no longer permissible portions under the Motion Picture Production Code are missing. The dialogue for both films is often taken directly from the novel, verbatim. Differences between the two films are due almost wholly to Pre-Code aspects of the earlier film. In addition to an overall lighter tone and looser pace, the 1931 film contains sexually suggestive situations.