[1] Shot in Spain, this "brawling spectacle"[2] has an often-overlooked light-comedy satirical facet, which to this day often confuses viewers.

[3] The title song "We All End Up the Same", with music by John Cacavas and lyrics by Don Black, is sung by Savalas.

[4] After being double-crossed in an arms deal by a gun merchant McDermott (Luis Dávila) from Columbus, New Mexico, legendary Mexican revolutionary Pancho Villa (Telly Savalas) and his American lieutenant Scotty (Clint Walker) decide to exact revenge by raiding a US Army weapons depot in Columbus and seizing McDermott.

Producer Bernard Gordon wrote in his autobiography that Telly Savalas and Clint Walker did not get along during the shooting of the movie.

[6] This was important to Walker, as not much time had passed since he had barely survived a skiing accident, which, as he told Gordon, completely changed his life.