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.
Reginald Owen
Owen first played Watson in the film "Sherlock Holmes" (1932), and then Holmes himself in "A Study in Scarlet" (1933). Having played Ebenezer Scrooge, Sherlock Holmes and Dr. Watson, Owen has the odd distinction of playing three classic characters of Victorian fiction only to live to see those characters be taken over and personified by other actors, namely Alastair Sim as Scrooge, Basil Rathbone as Holmes and Nigel Bruce as Watson.