Crime drama fans looking for their next fix have just weeks to watch an 'outstanding' movie on the BBC and BBC iPlayer . 2015 biographical film, Legend, focuses on the life and crimes of the Kray twins , Reggie and Ronnie, as they rise through the ranks of the criminal underworld to become two of England's most dreaded mafia dons. The film was written and directed by Brian Helgeland, who adapted it from John Pearson's 1972 book The Profession of Violence: The Rise and Fall of the Kray Twins. In