Esos locos cuatreros

The outfit that Peter (G.W. Bailey) wears is an homage to Smiley Burnette, who was the "sidekick" for Roy Rogers, Gene Autry, and Charles Starrett in most of the western movies made in the 1940s and 1950s. He always wore a checkered shirt and a black hat with the brim turned up in front. He also rode a white horse with a black ring around one eye.

When the train is stopped, and Rex shoots back at the three men with the rifles, you can see the string that pulls off Jim's hat in the background. You can also see the person behind him pulling it off.

The edited-for-television release of Rustler's Rhapsody contains a scene deleted from the theatrical release. It features an exchange between Rex (with Peter in tow) and Colonel Ticonderoga in the middle of the forest just before the big shoot-out. The Colonel explains that he'll have 20 men gunning for Rex, to which Rex replies, "One hand, 20 hands, it's all the same to me." (Note that in the shoot-out, Rex claims there are too many men for him to handle because "usually 40% chicken out." 20 men minus 40% would have left 12 men, which would've been exactly enough for Rex's two fully-loaded sixguns to take out.)

Featured in At the Movies: Girls Just Want to Have Fun/Code of Silence/Gotcha!/Rustlers' Rhapsody (1985)