Sherlock Holmes and the Secret Weapon the two other than the code. It is implied that the events of "The Dancing Men" are canon with the events of the film, as Watson is reminded of "a case [they] had some years ago". Lionel Atwill appeared previously in the film "The Hound of the Baskervilles" (1939) as Dr Mortimer. Sherlock Holmes and the Secret Weapon Sherlock Holmes and the Secret Weapon (1942) is the fourth in the Basil Rathbone/Nigel Bruce series of 14 Sherlock Holmes films which updated the characters created by Sir Arthur Conan Doyle to the then present day. The film is credited as an
Adaptations of Sherlock Holmes End actor Eille Norwood in the lead with Hubert Willis as Watson. John Barrymore played the role in a 1922 movie entitled "Sherlock Holmes", with Roland Young as Watson and William Powell in his first screen appearance. This Goldwyn film is the first Holmes movie made with high production values and a major star. Clive Brook played Sherlock Holmes three times: "The Return of Sherlock Holmes" (1929), as part of an anthology film, "Paramount on Parade" (1930), and "Sherlock Holmes" (1932). In 1931 Raymond Massey played Sherlock Holmes in his screen debut, "The Speckled Band", while Arthur Wontner played Holmes