NEW YORK, NY.- Kevin Costner’s audacious experiment seems to have failed.

Costner tried something rare this summer, releasing the first chapter of his western saga “Horizon” — which he directed, starred in, co-wrote and partly financed — in theaters across the country on June 28. The plan was for the second chapter in the sprawling story to be released six weeks later.

But thanks to paltry box office returns, that plan has been scuttled. On Wednesday, New Line Cinema, a subsidiary of Warner Bros., said it was canceling the theatrical release of “Horizon: An American Saga — Chapter 2,” which was scheduled to debut in theaters on Aug. 16.

The first chapter, which cost $100 million, made $11 million in its opening weekend and has generated just $22.6 million overall. Costner planned for the saga, about the settling of the West after the Civil War, to consist of four chapters, and tickets to the first two chapters were made available at the same time. Those who bought tickets to the second “Horizon” film would be able to receive a refund.

“Horizon: An American Saga — Chapter 1” will now be available via premium video on demand on Tuesday, “in order to give audiences a greater opportunity to discover the first installment of ‘Horizon’ over the coming weeks,” a New Line spokesperson said in a statement. It will also be available on Max, the streaming service from Warner Bros. Discovery, though no date has been set for that. It is not clear when or how the second chapter will be released.

Costner, who invested $38 million of his own money in the project and left his lead role in the hit television show “Yellowstone” because of scheduling conflicts over “Horizon,” declined to comment. He began filming the third chapter in May.

“Kevin made this film for people who love movies and who wanted to go on a journey,” Territory Pictures, Costner’s production company, said in a statement. “The support that we have received from film fans, and the theater owners, as they experience the first chapter of this saga only serves to reinforce our belief in them and the films that we have made, and we thank them for coming on board for the ride. We welcome the opportunity for that window to be expanded, as we know it will only serve to enhance the experience of seeing ‘Horizon 2.’”

This article originally appeared in The New York Times.