In 1859, pioneers from the American East were enticed by the promise of the Wyoming settlement dubbed "Horizon." Less promoted was the presence of the Apache--and the perils of the journey would challenge hard-bitten horse trader Hayes Ellison (Kevin Costner) and those in his orbit. The first part of director-star Costner's projected four-film frontier odyssey also stars Sienna Miller, Sam Worthington, Abbey Lee, Luke Wilson, Jena Malone, Michael Rooker, Will Patton, Owen Crow Shoe, Tatanka Means. 181 min. Widescreen; Soundtrack: English.