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
Karl Marx in film "Sweet Movie", directed by Dušan Makavejev, a boat with a giant Karl Marx figurehead sailing along a river is a consistent narrative motif. The film includes several characters, such as 'Mr. Kapital' (played by John Vernon), who refer to Marx and Marxist themes. Alexander Kluge's "News from Ideological Antiquity: Marx – Eisenstein – Das Kapital", is an experimental film which explores “the Marxian attention to the production, distribution and consumption at work behind the phenomenological surface of everyday life and experience.” The film is composed of what the Marxist critic Frederic Jameson calls "fragments", akin to "Freudian free association", rather