Revealing mistake: Joe and Eddie are in a corral in a big valley, taking turns trying to tame a horse known as Hammerhead. In the long shots, obviously using stunt doubles atop the horse, Hammerhead is bucking and running. The close-ups of Joe and Eddie show them only from the waist up and they are not moving forward. They are simply bouncing up and down. In addition, the close-ups show only blue sky and not the surrounding hills.