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 registered for the American draft, but he was not summoned by either country. Despite this criticism Chaplin was a favourite with the troops, and his popularity continued to grow worldwide. "Harper's Weekly" reported that the name of Charlie Chaplin was "a part of the common language of almost every country", and that the Tramp image was "universally familiar". In 1917, professional Chaplin imitators were so widespread that he took legal action, and it was reported that nine out of ten men who attended costume parties dressed as the Tramp. The same year, a study by the Boston Society for Psychical