Mystery film Holmes has been portrayed by a multitude of actors in over 200 films. Perhaps the earliest detective comedy is Buster Keaton's "Sherlock Jr." (1924). Until recently, the only American-made series starred Basil Rathbone and Nigel Bruce as Holmes and Dr. Watson. Together they made 14 films between 1939 and 1946. The first two, at 20th Century Fox, were period piece mysteries set in the late-Victorian era of the original stories. By the third film, "Sherlock Holmes and the Voice of Terror" (1942), now taken up by Universal Studios, Holmes was updated to the present day. Several films dealt with World
Sherlock Holmes 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. Conan Doyle's 56 short stories and four novels are known as the "canon" by Holmes aficionados. Early canonical scholars included Ronald Knox in Britain and Christopher Morley in