The Mercenary Italian Il mercenario , known in the UK as A Professional Gun, is a 1968 Zapata Western film directed by Sergio Corbucci. The film stars Franco Nero, Jack Palance, Tony Musante and Giovanna Ralli, and features a musical score by Ennio Morricone and Bruno Nicolai. The film takes place during the Mexican Revolution and is a wellknown example of the Zapata Western subgenre of the Spaghetti Western.
On the northern side of the MexicoUnited States border, Sergei Polack Kowalski, a wellgroomed, greedy mercenary, attends a circus performance where he recognizes the shows lead rodeo clown as Paco Roman. During the performance, Kowalski reminisces on how he and Paco fought together as revolutionaries against the Mexican Government.Prior to the start of their partnership, Paco, a peon working in a silver mine owned by Elias Garcia, rebels against his boss and humiliates him and his two brothers, including Colonel Alfonso Garcia. He is soon captured, but saved from execution by his friends. Meanwhile, Kowalski makes a deal with Elias and his brother to take their silver safely across the border. Curly, Kowalskis flamboyant American rival, sees the three men talking and tracks down the brothers to find out what they hired Kowalski for, after which Curly kills the two. ........
Source: Wikipedia