Third Star (2010)
Third Star is a 2010 British drama film directed by Hattie Dalton and starring Benedict Cumberbatch, J. J. Feild, Tom Burke, Adam Robertson, and Hugh Bonneville. It premiered at the Edinburgh Film Festival in June 2010, where it was shown as the closing film, and was released in the United Kingdom on 20 May 2011.
More at Wikipedia.