Literary adaptation
Works of literature have been adapted for film from the dawn of the industry. Some of the earliest examples come from the work of Georges Méliès, who pioneered many film techniques. In 1899, he released two adaptations — "Cinderella" based on the Brothers Grimm story of the same name and "King John", the first known film to be based on the works of Shakespeare. The 1900 film "Sherlock Holmes Baffled", directed by Arthur Marvin featured Arthur Conan Doyle's detective character Sherlock Holmes intruding upon a pseudo-supernatural burglary. The film, considered the first detective movie, ran for only 30 seconds and was originally intended to be shown in hand-cranked Mutoscope machines.
The Adventure of Sherlock Holmes' Smarter Brother
Douglas Wilmer and Thorley Walters appear as Sherlock Holmes and Dr. Watson, respectively. Wilmer had previously appeared as Sherlock Holmes in the 1960s BBC TV series, and Walters played Watson in three other films: "Sherlock Holmes and the Deadly Necklace" (1962), "The Best House in London" (1969), and "Silver Blaze" (1977).