Charlie Chaplin filmmaking methods, claiming such a thing would be tantamount to a magician spoiling his own illusion. Little was known about his working process throughout his lifetime, but research from film historians – particularly the findings of Kevin Brownlow and David Gill that were presented in the three-part documentary "Unknown Chaplin" (1983) – has since revealed his unique working method. Until he began making spoken dialogue films with "The Great Dictator", Chaplin never shot from a completed script. Many of his early films began with only a vague premise – for example "Charlie enters a health spa" or "Charlie works in
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.