The Marx Brothers Chico, Groucho, Harpo and Zeppo were an American family comedy act that was successful in vaudeville, on Broadway, and in motion pictures from 1905 to 1949. Five of the Marx Brothers' thirteen feature films were selected by the American Film Institute (AFI) as among the top 100 comedy films, with two of them (Duck Soup and A Night at the Opera) in the top twelve. They are widely considered by critics, scholars, and fans to be among the greatest and most influential comedians of the 20th century.