The "Sennett Bathing Beauties"
The studio is perhaps best remembered for the era under Mack Sennett when he created the slapstick antics of the Keystone Cops, from 1912, and for the Sennett Bathing Beauties, beginning in 1915. Charlie Chaplin got his start at Keystone when Sennett hired him fresh from his vaudeville career to make silent films. Charlie Chaplin at Keystone Studios is a 1993 compilation of some of the most notable films Chaplin made at Keystone, documenting his transition from vaudeville player to true comic film actor to director. In 1915, Keystone Studios became an autonomous production unit of the Triangle Film Corporation with D. W. Griffith and Thomas Ince. In 1917, Sennett gave up the Keystone trademark and organized his own company.
Silent animal comedy A Little Hero
(1913) directed by George Nichols
for Keystone Studios. A dog saves a parakeet from a cat. Running time: 04:32.
Many other important actors also worked at Keystone toward the beginning of their film careers, including Marie Dressler, Harold Lloyd, Mabel Normand, Roscoe Arbuckle, Gloria Swanson, Louise Fazenda, Raymond Griffith, Ford Sterling, Ben Turpin, Harry Langdon, Al St. John and Chester Conklin.
Sennett, by then a celebrity, departed the studio in 1917 to produce his own independent films (eventually distributed through Paramount). Keystone's business decreased after his departure, and finally closed after bankruptcy in 1935.