Rent Spirit: Stallion of the Cimarron (2002)

Join Spirit, a wild young mustang, as he sets out on a spectacular, action-packed quest to overcome the impossible, save his homeland and regain his freedom. In his courageous and thrilling journey home across the majestic wilderness of the American frontier. Spirit forms a remarkable friendship with a young Lakota brave, outwits a relentless squadron of soldiers, and falls for a beautiful paint mare named Rain.