Adaptations
Among the few film adaptations are the 1916 silent film The Valley of Fear starring H.A. Saintsbury and Booth Conway, the 1935 British film The Triumph of Sherlock Holmes, starring Arthur Wontner as Holmes and Ian Fleming as Watson, and the 1984 animated film Sherlock Holmes and the Valley of Fear, starring Peter O'Toole as the voice of Holmes. The story was also adapted for an episode of the 1954 television series Sherlock Holmes starring Ronald Howard as Holmes and Howard Marion Crawford as Watson. The episode is titled "The Case of the Pennsylvania Gun". The 1962 film Sherlock Holmes and the Deadly Necklace was intended to be an adaptation of The Valley of Fear, but only minor elements of the story remained in the final film.
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