Restoration experts piece together silent Sherlock Holmes mysterybr br Sherlock Holmes fans are being promised a most authentic depiction of the fictional detective, with the restoration of a century-old silent film series chronicling the London sleuth's adventures. Painstakingly restored by staff at the British Film Institute's National Archive, audiences will get a first glimpse of the restored works from the early 1920s next week at a London Film Festival screening, accompanied by a newly commissioned live score from Royal Academy of Music performers.