1.)  Buster Keaton was a American comedian and director who directed many breakthrough films during the silent era, Charlie Chaplain was a actor who made many successful films during the silent era, he was a method actor who used his theatrical experience to communicate with the audience. Harold Lloyd was one of the first big stars that was recognized in the Hollywood industry

2.) Keaton: The General (1926)

Chaplain: The Great Dictator (1940)

Lloyd: Safety Last (1923)

3)Toto and Jac Tati