The monochrome brown of the outside scenery seen from inside the stagecoach through the windows during the ride does not match the colored external scenery as shown from outside the stagecoach, proving that the studio used old black & white stock footage that was tinted brown to disguise its black & white origins.
Sheriff Cauthen: Tell you what I'm gonna do, Wade. The minute I get you on the train, I'm going home to finish a quart of bourbon and go to bed. But until then I'm go to stay awake, sober... and nervous.