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 over the making of his pictures. "A Dog's Life", released April 1918, was the first film under the new contract. In it, Chaplin demonstrated his increasing concern with story construction and his treatment of the Tramp as "a sort of Pierrot". The film was described by Louis Delluc as "cinema's first total work of art". Chaplin then embarked on the Third Liberty Bond campaign, touring the United States for one month to raise money for the Allies of the First World War. He also produced a short propaganda film at his own expense, donated to the government for fund-raising, called