Charlie Chaplin physical resemblance that supplied the plot for Chaplin's next film, "The Great Dictator", which directly satirised Hitler and attacked fascism. Chaplin spent two years developing the script, and began filming in September 1939 – six days after Britain declared war on Germany. He had submitted to using spoken dialogue, partly out of acceptance that he had no other choice, but also because he recognised it as a better method for delivering a political message. Making a comedy about Hitler was seen as highly controversial, but Chaplin's financial independence allowed him to take the risk. "I was determined to go ahead,"
Charlie Chaplin and machinery in the workplace would increase unemployment levels. It was these concerns that stimulated Chaplin to develop his new film. "Modern Times" was announced by Chaplin as "a satire on certain phases of our industrial life." Featuring the Tramp and Goddard as they endure the Great Depression, it took ten and a half months to film. Chaplin intended to use spoken dialogue but changed his mind during rehearsals. Like its predecessor, "Modern Times" employed sound effects but almost no speaking. Chaplin's performance of a gibberish song did, however, give the Tramp a voice for the only time on film.