query: distributor molly o 
supports: A silent film is a film with no synchronized recorded sound, especially with no spoken dialogue. The silent film era lasted from 1895 to 1936. In silent films for entertainment, the dialogue is transmitted through muted gestures, mime and title cards which contain a written indication of the plot or key dialogue. The idea of combining motion pictures with recorded sound is nearly as old as film itself, but because of the technical challenges involved, synchronized dialogue was only made practical in the late 1920s with the perfection of the Audion amplifier tube and the introduction of the Vitaphone system. During silent films, a pianist, theatre organist, or, in large cities, even a small orchestra would often play music to accompany the films. Pianists and organists would either play from sheet music or improvise; an orchestra would play from sheet music. Vitaphone was a sound film system used for feature films and nearly 1,000 short subjects made by Warner Bros. and its sister studio First National from 1926 to 1931. Vitaphone was the last major analog sound-on-disc system and the only one which was widely used and commercially successful. The soundtrack was not printed on the film itself, but issued separately on phonograph records. The discs, recorded at  rpm (a speed first used for this system) and typically in diameter, would be played on a turntable physically coupled to the projector motor while the film was being projected. Many early talkies, such as "The Jazz Singer" (1927), used the Vitaphone system. The name "Vitaphone" derived from the Latin and Greek words, respectively, for "living" and "sound". Mack Sennett (born Michael Sinnott; January 17, 1880  November 5, 1960) was a Canadian-born American director and actor and was known as an innovator of slapstick comedy in film. During his lifetime he was known at times as the "King of Comedy". His short "Wrestling Swordfish" was awarded the Academy Award for Best Live Action Short Film in 1932 and he earned an Academy Honorary Award in 1937. Keystone Studios was an early movie studio founded in Edendale, California (which is now a part of Echo Park) on July 4, 1912 as the Keystone Pictures Studio by Mack Sennett (1880-1960) with backing from actor-writer Adam Kessel (1866-1946) and Charles O. Baumann (1874-1931), owners of the New York Motion Picture Company (founded 1909). The company filmed in and around Glendale and Silver Lake, Los Angeles, California for several years, and its films were distributed by the Mutual Film Corporation between 1912 and 1915. Molly O is a 1921 American silent film starring Mabel Normand and directed by F. Richard Jones . Mabel Normand (November 9, 1892  February 23, 1930) was an American silent film actress, screenwriter, director, and producer. She was a popular star and collaborator of Mack Sennett in his Keystone Studios films and, at the height of her career in the late 1910s and early 1920s, had her own movie studio and production company. Onscreen, she appeared in 12 successful films with Charles Chaplin and 17 with Roscoe "Fatty" Arbuckle, sometimes writing and directing (or co-writing/directing) movies featuring Chaplin as her leading man.
  Throughout the 1920s, her name was linked with widely publicized scandals, including the 1922 murder of William Desmond Taylor and the 1924 shooting of Courtland S. Dines, who was shot by Normand's chauffeur using her pistol. She was not a suspect in either crime. Her film career declined, possibly due to both scandals and a recurrence of tuberculosis in 1923, which led to a decline in her health, retirement from films, and her death in 1930 at age 37.
candidates: first national keystone studios lifetime mutual film warner bros .
answer: first national