Born Michael Sinnott in Danville, Quebec, he was the son of Irish Catholic John Sinnott and Catherine Foy. His parents married in 1879 in Tingwick, Quebec and moved the same year to Richmond, Quebec where Sinnott wa… See more

With financial backing from Adam Kessel and Charles O. Bauman of the New York Motion Picture Company, Sennett founded Keystone Studios in Edendale, California – now a part of Echo Park – in 1912. The original mai… See more

In 1917, Sennett gave up the Keystone trademark and organized his own company, Mack Sennett Comedies Corporation. Sennett's bosses retained the Keystone trademark and produced a cheap series of comedy sh… See more