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 a pawn shop." He then had sets constructed and worked with his stock company to improvise gags and "business" using them, almost always working the ideas out on film. As ideas were accepted and discarded, a narrative structure would emerge, frequently requiring Chaplin to reshoot an already-completed scene that might have otherwise contradicted the story. From "A Woman of Paris" onward Chaplin began the filming process with a prepared plot, but Robinson writes that every film up to "Modern Times" "went through many metamorphoses and permutations before the story took its final form." Producing films in this manner meant Chaplin