Goofs

As Doc Carter's Medicine Show pulls up in Paradise Canyon, the caravan has no markings or livery. Then when they find a spot to park, its conspicuous livery has returned to the caravan.

When a "bad guy's" horse falls the rider goes straight forward over the horse's head. Later John Wayne's horse falls and the exact film is used to show his fall. (The horses most likely fell as the result of hitting a trip line, commonly used in early westerns.)

At around 2 minutes into the actual film, we see John Wayne riding from town to town in southern Arizona searching for the Medicine Show that are suspect in a counterfeiting ring. We see Wayne riding through the desert and then are show a street scene just before his arrival. Unfortunately, in the scene we see snow covered mountains, towering pines and then we see 2 men walk from right to left wearing fur hats. Then we see a figure walk down the street wearing a Mountie hat, striped breeches (sometimes called banana pants) and what appears to be a short jacket or tunic, implying a Northwest Royal Canadian Mounted Policeman. The scene lasts about 8 seconds and then cuts again to Wayne as he rides into a desert town, still searching for the Medicine Show.