Watch on Soap2day. America's great film director-actor Buster Keaton, discussed by film critic Andrew Sarris and Raymond Rohauer, cinema historian, with some unusual perspectives on his goals and motivations. Illustrated with many film excerpts from 1917 to 1928. Rohauer knew Keaton and was partly responsible from rescuing many of his old films from destruction. Sarris is a leading film critic who has often written about Keaton.