Kevin Costner's big-budget Western film, Horizon: An American Saga — Chapter One, is facing disappointing tracking numbers ahead of its domestic release. Costing $100 million to make, the film is struggling to make an impact with projected opening sales of only $12 million. Warner Bros. is handling the domestic release, with Costner aiming to rally his Yellowstone fan base for support. Despite Costner's passion project and personal investment of $38 million, the film is considered one of the biggest gambles of the year. In comparison, Paramount's prequel A Quiet Place: Day One is expected to dominate the box office with a projected $40 million opening. Costner plans to release two more chapters of Horizon, including Chapter 2 just two months after the first installment. The stakes are high for Costner as he seeks additional funds to complete his vision and continue pursuing his passion for filmmaking.