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
Music for Stowaways Stowaways", renamed "Dinsongs for Films (Music for Stowaways)", for film producers and television companies to potentially use as soundtrack music. An alternate version of the album with several different tracks, "Music for Listening To", was released as an LP later on in 1981, pressed by Virgin in the UK mostly for export sales, although it was also sold in the UK. Bob Last is credited as executive producer and packaging designer on this version. Despite originally being a limited edition, Virgin re-released "Music for Stowaways" on cassette in 1988, while on 9 September 1997, Virgin's sub-label Caroline Records released a