sennett

noun

1. MackMichael Sinnott, 1884–1960, U.S. motion-picture director and producer, born in Canada.

noun

1. Mack, original name Michael Sinott. 1884–1960, US film producer and director, born in Canada, who produced many silent comedy films featuring the Keystone Kops, Charlie Chaplin, and Harold Lloyd, for the Keystone Company