Horizon: An American Saga – Chapter 1 reached No. 10 on Amazon Prime Video’s Top 10 Movies list on June 4, 2026, giving Kevin Costner’s sprawling Western a late boost after its theatrical run.
Horizon: An American Saga – Chapter 1, a kevin costner american west film that Costner directed, co-produced and co-wrote, arrived on Amazon Prime Video on May 23 and climbed into the platform’s Top 10 by June 4. The placement is the clearest sign so far that the film has found a measurable audience on streaming even after an uneven box office performance.
The numbers around the movie remain stark: the first installment was released June 28, 2024, and reportedly cost about $100 million to make but returned roughly $38 million at the global box office. Critical response was mixed — Rotten Tomatoes’ critics averaged 51 percent while users rated the film 70 percent — signaling a split between professional appraisal and viewer appetite that may help explain the Prime Video interest.
At issue for viewers is what the film actually shows. Chapter 1 follows multiple interconnected stories before and during the American Civil War as settlers try to build a town called Horizon and run headlong into violent conflicts with the local Apache tribe. The plot threads include survivors Frances Kittredge and her daughter Elizabeth seeking refuge at an army camp, and another woman, Lucy, who flees and assumes a new identity with her son after shooting a dangerous man. The scale and ambition of that storytelling is what positioned the film as the first of a planned four-part saga.
The streaming ranking matters now because Chapter 2 remains in limbo. Costner filmed Chapter 2 back-to-back with the first film, and the second installment had been scheduled for release soon after Chapter 1 — plans that were shelved when the first film underperformed at the box office. The Amazon Prime Video lift highlights that a sizeable audience is watching the material at home even if theaters did not deliver on the projected returns.
That contrast is the story’s friction: a production that cost about $100 million and earned roughly $38 million at the global box office has nevertheless registered among the most-watched movies on a major streaming service. The split between Rotten Tomatoes critics’ 51 percent and users’ 70 percent underscores a further mismatch — critics were lukewarm while a core group of viewers responded more positively, enough to push the film into Prime Video’s Top 10 during its first weeks on the platform.
What the Prime Video placement does not answer is whether that streaming audience will translate into a path forward for the saga. Chapter 2, filmed back-to-back with Chapter 1 and once expected to follow quickly, has been delayed indefinitely. No new release date has been set.
For now, Chapter 1’s rise to No. 10 on June 4 is a clear result: the movie is finding viewers on streaming where it failed to meet theatrical expectations. The unresolved question — whether that streaming momentum will be enough to force a new timetable for Chapter 2 — remains open; officially, the sequel is delayed indefinitely and no fresh release plan has been announced.
