All three of these filmmakers were comedians and worked in comedy which featured slapstick (exaggerated physical theatre). They also all wrote and starred in films.

Buster Keaton: Keaton was an American filmmaker and comedian. He worked mostly in silent films where his trademark was physical comedy and a deadpan expression. His most influential film was “The General” (1927).

Charlie Chaplin: Chaplin was an English comic actor and filmmaker. He became an icon through his persona of ‘the tramp’. Other notable films of Chaplin’s were “The Kid” (1921) and “The Great Dictator” (1940).

Harold Lloyd: Lloyd was an American comic and stunt performer who appeared in many silent comedy films. Some films he starred and produced are “Girl Shy” (1924) and “Movie Crazy” (1932).

These three filmmakers influenced the film industry. For example, Toto, an Italian stage actor who built their character around Charlie Chaplin.