The Comancheros

co-starring Nehemiah Persoff as well as Brooklyn born Ina Balin (Rosenberg) with music by Brooklyn born composer Elmer Bernstein.

The Comancheros is a 1961 western film directed by Michael Curtiz and starring John Wayne and Stuart Whitman. When health troubles prevented Curtiz from finishing the film, Wayne directed the remainder of the movie, though his role remained uncredited. Curtiz died shortly after the film was completed. Featured are western film veterans Bob Steele (actor), Guinn "Big Boy" Williams, and Harry Carey, Jr. in uncredited supporting roles.
Roguish gambler Paul Regret (Stuart Whitman) escapes a death penalty after winning a duel with the son of a Louisiana judge (and he claimed that he would have only wounded him if he hadn't sidestepped). He is captured by Texas Ranger Jake Cutter (John Wayne) after a tryst with a mysterious lady, Pilar Graile (Ina Balin). But Regret manages to escape, but is soon recaptured after a chance encounter with Cutter in a saloon.
In the process of returning Regret to Louisiana, Cutter is forced to join forces with the condemned to fight the "Comancheros;" white men who smuggle guns and whiskey to the Comanche indians and incite violence. Regret shows his worth by escaping an attack and returning with the other Texas Rangers.
Eventually they infiltrate the self-sufficient Comanchero community at the bottom of a valley in the desert. Pilar reappears as the daughter of the crippled but ruthless leader (Nehemiah Persoff). After Cutter and the other Texas Rangers defeat both the Comanches and Comancheros, Regret and Pilar leave together for Mexico.