Horizon: An American Saga is an ambitious film series of Western films written and directed by Kevin Costner. The story is divided into four chapters, with chapter 1 having just been released on June 28, 2024.Horizon: An American Saga chapter 1 has launched exclusively in American theaters as of writing. There is no set release date for the film on home media or streaming platforms. International distribution is being managed by K5 International.Kevin Costner has considered Horizon: An American Saga his passion project since at least 1988. He previously dabbled in the Western genre with the 2003 film Open Range.The film covers an extensive period in the history of the American frontier, with the story spanning events from both before and after the American Civil War.Filming has so far been done in the region of southern Utah, with the filming of both the first and second chapters completed as of 2024. The filming of Chapter 3 is currently ongoing.Horizon: An American Saga is only available in theatersSince the COVID-19 pandemic restrictions began to lift, the film industry has trended away from prioritizing streaming as its primary distribution model.Horizon: An American Saga reflects this trend, as it is released exclusively in theaters without a simultaneous release on streaming platforms.The films have an incredibly ambitious budget, with the price tag of the first two chapters approaching $100 million. Horizon: An American Saga is also competing with some major heavy-hitters, most notably Disney and Pixar's Inside Out 2, which is currently dominating the box office.Another movie Horizon is competing with is A Quiet Place: Day One, which is a prequel to the acclaimed 2018 horror film A Quiet Place.The film series will face an uphill battle to realize its ambitions, with chapter 1 starting with a "concerning" $12 million start, per a report from Variety. Chapter 2 of Horizon: An American Saga is scheduled to be released within a matter of months on August 16. According to a Variety report on June 25, Warner Bros. is taking this gamble to make the Horizon film series feel more like a cultural event.Horizon: An American Saga cast and characters View this post on Instagram Instagram PostThe film boasts an ensemble cast of well-known actors, befitting its ambitious scope.Aside from Kevin Costner himself, who has had a storied career in Hollywood with roles in The Bodyguard and The Untouchables, the film also stars heavyweights such as Sienna Miller, Sam Worthington, Jamie Campbell Bower, and Thomas Haden Church.The full cast list of chapter 1 is as follows:Kevin Costner as the lead character, Hayes EllisonSienna Miller as Frances KittredgeDanny Huston as Colonel HoughtonSam Worthington as First Lt. Trent GephardtMichael Rooker as Sgt. Major RiordianJenna Malone as Ellen/Lucy.Isabelle Fuhrman as Diamond KittredgeMichael Angarano as Walter ChildsAbby Lee as MarigoldJamie Campbell Bower as Caleb SykesJon Beavers as Junior SykesOwen Crow Shows as PionsenayTatanka Means as TaklishimWase Chief as LiluyeLuke Wilson as Matthew Van WeydenElla Hunt as Juliette ChesneyTom Payne as Hugh ProcterWill Patton as Owen KittredgeDale Dickey as Mrs SykesJeff FaheyDuval L BranchThomas Haden ChurchAlejandro EddaTim GuineeColin CunninghamScott HazeAngus MacFaydenDouglas SmithMichael ProvostLarry BagbyJames RussoHayes CostnerJames Landry HebertDalton BakerCharles BakerGeorgia MacPhailNaomi WindersAustin ArcherHorizon: An American Saga is an incredibly ambitious endeavor helmed by Kevin Costner. Per a June 25 report from Variety, he has reportedly spent $38 million from his own finances to produce the film series.