The Richard III Society works to defend the king's reputation, although many historians believe Richard was responsible for the murder of his young nephews, King Edward V and Prince Richard.

BBC: Richard III's remains: Leicester car park dug up

James Fox will play King George V, while Laurence Fox has been cast as his son Bertie, Edward's younger brother.

BBC: Madonna casts Fox family for Wallis Simpson film

Richard became king in 1483, taking power from his nephew, the 12-year-old Edward V.

WSJ: Richard III's Grave Confirmed