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 members to his stock company, Albert Austin and Eric Campbell, and produced a series of elaborate two-reelers: "The Floorwalker", "The Fireman", "The Vagabond", "One A.M.", and "The Count". For "The Pawnshop", he recruited the actor Henry Bergman, who was to work with Chaplin for 30 years. "Behind the Screen" and "The Rink" completed Chaplin's releases for 1916. The Mutual contract stipulated that he release a two-reel film every four weeks, which he had managed to achieve. With the new year, however, Chaplin began to demand more time. He made only four more films for Mutual over the first ten months