Many of the greatest gangster movies are violent and dark in tone. Think: Luca Brasi getting garroted inside Virgil “The Turk” Sollozzo’s lair in The Godfather, or Al Capone beating one of his Capos to death with a baseball bat at a banquet gathering in The Untouchables. Besides that, there tends to be plenty of betrayals, mistreatment, and sad outcomes for both likable and unlikable characters.