Charlie Chaplin use ("Easy Street", 1917). He often explored these topics ironically, making comedy out of suffering. Social commentary was a feature of Chaplin's films from early in his career, as he portrayed the underdog in a sympathetic light and highlighted the difficulties of the poor. Later, as he developed a keen interest in economics and felt obliged to publicise his views, Chaplin began incorporating overtly political messages into his films. "Modern Times" (1936) depicted factory workers in dismal conditions, "The Great Dictator" (1940) parodied Adolf Hitler and Benito Mussolini and ended in a speech against nationalism, "Monsieur Verdoux" (1947) criticised war
Charlie Chaplin himself. Chaplin finished editing "City Lights" in December 1930, by which time silent films were an anachronism. A preview before an unsuspecting public audience was not a success, but a showing for the press produced positive reviews. One journalist wrote, "Nobody in the world but Charlie Chaplin could have done it. He is the only person that has that peculiar something called 'audience appeal' in sufficient quality to defy the popular penchant for movies that talk." Given its general release in January 1931, "City Lights" proved to be a popular and financial success – eventually grossing over $3 million. The