Often imitated, never rivaled, the Marx Brothers were the masters of vaudeville. Originally masters of the stage, they conquered almost every medium, creating memorable sketches and classic movies such as Duck Soup, The Cocoanuts and A Night at the Opera - all of which still find their way into top comedy movie lists!  Household names to this day, the Marx Brothers left an indelible mark on the comedy scene and worked with some of the most famous names of the day; including Marilyn Monroe and Charlie Chaplin!  Here, in a fully revised and updated edition, is the meticulously researched guide to their lives and careers, covering all of their movies, guest appearances, stage shows and television features!