For a Few Dollars More
In his investigation of narrative structures in Spaghetti Western films, Fridlund writes that beneath the smooth string of action scenes in "Los Pistoleros de Arizona" a classical US Western plot - about a stranger protecting settlers against the villains - coexists with a different story: the unstable partnership between Jeff and Carrancho - appearing one year before "For a Few Dollars More" made this a standard theme in Spaghetti Western films.