Horizon: An American Saga chronicles a multi-faceted, 15-year span of pre-and post-Civil War expansion and settlement of the American west. Movies One and Two have a dual theatrical release, with film One opening June 28, 2024 and film Two debuting August 16, 2024.

In the great tradition of Warner Bros. Pictures’ iconic Westerns, Horizon: An American Saga explores the lure of the Old West and how it was won—and lost—through the blood, sweat and tears of many. Spanning the four years of the Civil War, from 1861 to 1865, Costner’s ambitious cinematic adventure take audiences on an emotional journey across a country at war with itself, experienced through the lens of families, friends and foes all attempting to discover what it truly means to be the United States of America.

Directed, co-written and starring Kevin Costner Horizon: An American Saga also stars Sienna Miller, Jena Malone, Dale Dickey, Abbey Lee, Isabelle Fuhrman, Jamie Campbell Bower, Michael Rooker, Giovanni Ribisi, Jeff Fahey, Sam Worthington, Will Patton, Michael Angarano, Danny Huston, Luke Wilson, Thomas Haden Church, Kathleen Quinlan, David O’Hara, Douglas Smith, Angus Macfadyen, Tim Guinee, Tom Payne, James Russo, Charles Baker, Glynn Turman, Larry Bagby, James Landry Hébert, Tatanka Means and Gattlin Griffith.