The Marx Brothers were an American family comedy act that was successful in vaudeville, on Broadway, and in 14 motion pictures from 1905 to 1949. Five of the Marx Brothers' fourteen feature films were selected by the American Film Institute (AFI) as among the top 100 comedy films, with two of them, Duck Soup (1933) and A Night at the Opera (1935), in the top fifteen. They are widely considered by critics, scholars and fans to be among the greatest and most influential comedians of the 20th century. The brothers were included in AFI's 100 Years... 100 Stars list of the 25 greatest male stars of Classical Hollywood cinema, the only performers to be included collectively.

Vaudeville is a theatrical genre of variety entertainment which began in France at the end of the 19th century. A vaudeville was originally a comedy without psychological or moral intentions, based on a comical situation: a dramatic composition or light poetry, interspersed with songs or ballets. It became popular in the United States and Canada from the early 1880s until the early 1930s, while changing over time.