Maurice Costello
Costello was born in Pittsburgh, Pennsylvania to Irish immigrants Ellen (née Fitzgerald; born 1853) and Thomas Costello (born 1852). He made his film debut in 1908, but was long believed to have debuted in "Adventures of Sherlock Holmes; or, Held for Ransom" (1905), supposedly playing the lead in what is regarded as the first serious film to feature the character of Sherlock Holmes, since it was preceded only by the 30-second comedy film "Sherlock Holmes Baffled" (1900). However, Holmesian scholar 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 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 adaptation of Conan Doyle's short story "The Adventure of the Dancing Men," though the only element from the source material is the dancing men code. Rather, it is a spy film taking place on the background of the then ongoing Second World War with an original premise. The film concerns the kidnapping of a Swiss scientist by their nemesis Professor Moriarty, to steal a new bomb sight and sell it to Nazi Germany. Sherlock Holmes and Dr. John Watson have to crack a secret code in order to save the country. The film is one of four films in the series which are in the public domain.