This is the first study of the life and art of Sydney Chaplin, Charlie Chaplin's brother, a person notable not only for his importance in establishing his brother's career, but in several other early Hollywood enterprises, including the founding of United Artists and the Syd Chaplin Aircraft Corporation, America's first domestic airline. Sydney also had a successful film career, beginning in 1914 with Keystone and culminating with a string of popular films for Warner Bros. in the 1920s. Sydney's film career ended in 1929 because of an assault charge by an actress. This incident proved to be only the last in a string of scandals, each causing him to move to another place, another studio, or another business venture.