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Movies like The Colt (2005)

During the heat of battle in the midst of the Civil War, a beguilingly innocent colt is born to Union Jim Rabb's beloved mare. Refusing the orders to shoot it, lest it prove a hindrance, Rabb keeps the colt as a consolation in these desperate times-a symbol of hope that leads the men of the First Cavalry on a journey of self-discovery and newfound brotherhood.