The Horse Soldiers (1959)

Factual error: The train that pulls into Newton Station with Confederate soldiers has freight cars of modern construction. This can be seen by the newer type trucks, unlike the 'arch-bar' trucks of the period.

Major Kendall: I don't understand a man like Miles giving up that easily.
Col. John Marlowe: Maybe losing that arm took some of the fight out of him.
Major Kendall: No... the man I knew could lose both arms and still try to kick you to death.

Trivia: This movie is based (loosely of course) on an actual Civil War raid led by Colonel Benjamin Grierson. See: "Grierson's Raid: A Cavalry Adventure of the Civil War" by Dee Brown.