Undated handout composite photo issued by the BBC of Benedict Cumberbatch and Martin Freeman (right) dressed in period costume, as the stars of the BBC1 drama Sherlock are to appear in a one-off special episode followed by three more films.  PRESS ASSOCIATION Photo. Issue date: Tuesday November 25, 2014.  No date has been given for the film to be finished but the BBC has previously said filming will begin in January. And there is no explanation why the pair are in period costume for the programme which has updated Arthur Conan Doyle's characters to the present day. See PA story SHOWBIZ Sherlock. Photo credit should read: BBC/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.
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