Arthur Conan Doyle's Sherlock Holmes stories have been adapted numerous times over the years, but one adaptation in particular, starring William Gillette, was shot in Chicago in 1916 and released by Essanay Studios, known for producing the famous Charlie Chaplin shorts.
Adapted from Doyle's 1899 play, the movie takes inspiration from the stories "A Scandal in Bohemia", "The Final Problem" and "The Copper Beeches", as well as the novel A Study in Scarlet, and is widely believed to be the only filmed record of Gillette's portrayal of Holmes.
The film was thought lost until, 98 years later, in 2014, it was rediscovered in the Cinematheque Francaise, with plans made to restore it and screen it in Britain on January 2015, then in the USA on May 2015.