Satire (1922), "Elmer Gantry" (1927; dedicated by Lewis to H. L. Menchen), and "It Can't Happen Here" (1935), and his books often explored and satirized contemporary American values. The film "The Great Dictator" (1940) by Charlie Chaplin is itself a parody of Adolf Hitler; Chaplin later declared that he would have not made the film if he had known about the concentration camps. In the United States 1950s, satire was introduced into American stand-up comedy most prominently by Lenny Bruce and Mort Sahl. As they challenged the taboos and conventional wisdom of the time, were ostracized by the mass media establishment
Charlie Chaplin century. He is often credited as one of the medium's first artists. Film historian Mark Cousins has written that Chaplin "changed not only the imagery of cinema, but also its sociology and grammar" and claims that Chaplin was as important to the development of comedy as a genre as D.W. Griffith was to drama. He was the first to popularise feature-length comedy and to slow down the pace of action, adding pathos and subtlety to it. Although his work is mostly classified as slapstick, Chaplin's drama "A Woman of Paris" (1923) was a major influence on Ernst Lubitsch's film "The