Yet, the glaring similarities between the 1959 Western Rio Bravo and the 1966 Western El Dorado have raised the question ...

John Wayne struggled with health problems and through action scenes on Rio Lobo, including carrying his co-star Jennifer O'Neill, who was punched by director Howard Hawks.

Sheriff John T. Chance has his hands full after arresting Joe Burdette for murder. He knows that Burdette's brother Nathan, a powerful rancher, will go to any lengths to get him out of jail.