A Night at the Opera (film) DVD commentary. But this could not have occurred, because Sam Marx had died in 1933, during pre-production of "Duck Soup", two years before "A Night at the Opera" was released. The rumor arose because Frenchy had had such a cameo appearance in the Marx Brothers' earlier "Monkey Business". There is, however, a reference to the Marx Brothers' mother, Minnie Marx, during the stateroom scene, in which a woman asks, "Is my Aunt Minnie in here?" Part of the concept of casting the Marx Brothers as stowaways on a ship was recycled from "Monkey Business". As Groucho's and Margaret Dumont's characters
Emil and the Detectives (1931 film) the notion of smart, organised schoolkids chasing a criminal in the big city." There are several film adaptions of "Emil and the Detectives". The British 1935 film and the German 1954 film are direct remakes of this 1931 film, using most of Wilder's screenplay and (in the case of the 1935 film) even recreating many of the same camera shots. Emil and the Detectives (1931 film) Emil and the Detectives () is a 1931 German adventure film directed by Gerhard Lamprecht and starring Rolf Wenkhaus. It is based on the 1929 novel by Erich Kästner, who also contributed to the