You play by the rules you lose! Il mercenario (The Mercenary) comes from director Sergio Corbucci, who also co-wrote the screenplay with Luciano Vincenzoni, Sergio Spina and Adriano Bolzoni. The film features Franco Nero, Tony Musante, Jack Palance and Giovanna Ralli. Ennio Morricone and Bruno Nicolai composed the music, and Alejandro Ulloa handled the cinematography. The story unfolds during the Mexican Revolu…