Back in 1950, John Wayne starred in Rio Grande, the third of his Cavalry Trilogy (alongside Fort Apache and She Wore a Yellow Ribbon) with director John Ford.

Cast and crew struggled terribly with the extremely hot Utah location, where sets and stages had to be built in challenging conditions.

To make matters worse, the actors had to perform in heavy-period costumes of the 19th century.

At least Duke was able to wear a smaller toupee to look slightly older than his Lieutenant Colonel Kirby…