Adaptations of Sherlock Holmes
It has been estimated that Sherlock Holmes is the most prolific screen character in the history of cinema. The first known film featuring Holmes is "Sherlock Holmes Baffled", a one-reel film running less than a minute, made by the American Mutoscope and Biograph Company in 1900. This was followed by a 1905 Vitagraph film "Adventures of Sherlock Holmes; or, Held for Ransom", with H. Kyrle Bellew and J. Barney Sherry in unlisted roles. It was long believed that the film starred Maurice Costello as Sherlock Holmes, but Leslie S. Klinger has written that the identification of Costello in the role is flawed. Klinger states that the first identification of Costello with the role was in Michael Pointer's "Public Life of Sherlock Holmes" published in 1975 but Pointer later realized his error and wrote to Klinger stating
Sherlock Holmes
The exact phrase, as well as close variants, can be seen in newspaper and journal articles as early as 1909; there is some indication that it was clichéd even then. The phrase "Elementary, my dear fellow, quite elementary" appears in P. G. Wodehouse's novel, "Psmith in the City" (1909–10), and "Elementary, my dear Watson, elementary" in his 1915 novel "Psmith, Journalist" (neither spoken by Holmes). The exact phrase "Elementary, my dear Watson" is used by protagonist Tom Beresford in Agatha Christie's 1922 novel "The Secret Adversary". It also appears at the end of the 1929 film "The Return of Sherlock Holmes", the first Holmes sound film. The phrase became familiar with the American public in part due to its use in The Rathbone-Bruce series of films from 1939 to 1946.