Silent comedy legends Roscoe "Fatty" Arbuckle and Mabel Normand at the 1915 San Francisco World's Fair Panama-Pacific Exposition. The theme of the expo was the newly built Panama Canal, and it also focused on San Francisco's newly rebuilt infrastructure following the earthquake of 1906. IMDb entry: http://www.imdb.com/title/tt0005675/

Charlie Chaplins 17th Film Released June 11 1914 The Knockout was Charlie Chaplin's seventeenth film for Keystone Studios. Chaplin only has a small role, and Fatty Arbuckle takes up the main role. It also stars Arbuckle's wife, Minta Durfee, Edgar Kennedy and Keystone owner, Mack Sennett in a minor role as a spectator. The film was directed by Charles Avery, and made in 1914 in America. http://www.imdb.com/title/tt0004194/