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
Marx Brothers biopic entitled "The Life and Times of the Marx Brothers". In addition to being a non-fiction biography of the Marxes, the film would have featured the brothers reenacting much of their previously unfilmed material from both their vaudeville and Broadway eras. The film, had it been made, would have been the first performance by the Brothers as a quartet since 1933. The five brothers made only one television appearance together, in 1957, on an early incarnation of "The Tonight Show" called "Tonight! America After Dark", hosted by Jack Lescoulie. Five years later (October 1, 1962) after Jack Paar's tenure, Groucho