Companeros is a 1970 Zapata western directed by Sergio Corbucci and starring Franco Nero, Tomas Milian, Jack Palance, and Fernando Rey. The music is by Ennio Morricone. It takes place during the Mexican Revolution. The talent involved in this makes it worth checking out.
Slant Magazine gives it a positive review and says, "Aside from its palpable merits as a brilliantly mounted genre offering, Compañeros is virtually unique among this otherwise heterogeneous wild bunch because it so explicitly takes as its subject matter the philosophical and ethical nature of revolution." DVD Talk says, "As a production, Compañeros is fairly elaborate. The Techniscope photography is very attractive, and the whole enterprise is graced with a typically quirky Ennio Morricone score." SpaghettiWestern.net concludes, "often appears in Spaghetti fans' top ten lists and it's easy to see why. It is 2 hours of out and out viewing pleasure in anyone's language. Whether you think it's a real western or not."