Gary Oldman is apparently set to move into directing and wants to cast Benedict Cumberbatch and Ralph Fiennes in his movie.
The Tinker, Tailor, Soldier, Spy actor is keen to start shooting a film called Flying Horse that he has penned about photographer Eadweard Muybridge, says The Wrap.
It follows the marriage problems between Eadweard and his wife Flora, who had an affair with theatre critic Harry Larkyns. Eadweard eventually killed Harry but was acquitted of the murder.
The subject of Flying Horse was responsible for making great strides in photography and motion-capturing imagery.
Gary reportedly wants Ralph as Eadweard and Benedict as Harry.
However, Benedict is also signed up for Guillermo del Toro's Crimson Peak, due to start filming at the beginning of 2014 when Gary wants to shoot his film.
Harry Potter star Gary, who won awards for directing Ray Winstone in Nil By Mouth in 1997, may appear in Flying Horse himself as the prosecuting attorney.
Last year Gary told the New York Times he was reading Rebecca Solnit's River Of Shadows: Eadweard Muybridge And The Technological Wild West.