Note 2: The technique used by both Booth and Blackton to record their film was called “one turn, one picture”, ie one image exposed per revolution of the film camera's crank. At that time, motorized film cameras were not yet known. See e.g. here Niels Plaschke's website under "So on film" and "Technical breakthrough". relating to. J. Stewart Blackton, see Maurice Horn, cited work, pp. 123. 123. Blackton was born in England, but came as a boy to New York, USA, where he received his education as a cartoonist. In 1896 he came in contact with Edison and was thus captured by the possibilities of the film medium. He became a prominent man in the American film industry, and together with Edison and several others, he created in 19 ?? The Vitagraph Company. This film company was later taken over by Brd. Warner and renamed Warner Bros. Pictures. Source: Richard Griffith and Arthur Mayer: The Movies. The Sixty-Year Story of the World of Hollywood from the Nickelodeon Days to the Present, pp. 13, 20, 20, 48, 113. Re. Warner Brothers see Index same place. - Charles Solomon: The complete Kodak animation book, pp. 11-12, 12.