The House That Shadows Built the Marx Brothers, with Davison Clark playing Mr. Lee, Theatrical Producer, which was intended to promote their forthcoming 1931 film "Monkey Business" (Clark later played the role of the frustrated Passport Official in "Monkey Business" and would also appear in the war scene in "Duck Soup"). The segment, containing material which was never included in any other Marx Brothers film, is a re-working of the first scene of their first successful Broadway revue "I'll Say She Is" (1924), which Groucho considered to have been the funniest work in the Brothers' career. Except for a few name changes and additional gags,
Marx Brothers Marx Brothers until the premiere of "I'll Say She Is", which was their first Broadway show, so this would mean that they used their real names throughout their vaudeville days, and that the name "Gummo" never appeared in print during his time in the act. Other sources reported that the Marx Brothers went by their nicknames during their vaudeville era, but briefly listed themselves by their given names when "I'll Say She Is" opened because they were worried that a Broadway audience would reject a vaudeville act if they were perceived as low class. The Marx Brothers' stage shows became