Kevin Costner is bursting with pride as his son Hayes makes his debut on the big screen.

In the highly anticipated two-part Western film “Horizon: An American Saga,” 15-year-old Hayes Costner takes on a significant role, marking his first foray into acting. Kevin Costner, 69, shared a glimpse of Hayes’ performance in the recently released trailer, expressing his joy and admiration for his son’s accomplishment.

In an Instagram post on the Kevin Costner & Modern West account, Costner shared his excitement, stating, “When it’s your movie you get to pick who you hang out with 👍🏻.” He went on to express his pride in Hayes, applauding his acting debut in #HorizonAmericanSaga and thanking fans for their enthusiastic response to the trailer.

In the trailer, Hayes shines in a gripping scene where he assists a woman, played by Sienna Miller, and a young girl to safety amid a harrowing attack on their home. Costner, who not only stars but also co-wrote and directed the film, previously commended Hayes’ performance, noting his talent and dedication to the role.

Reflecting on the decision to cast Hayes, Costner revealed his parental pride, sharing, “I kind of did it on purpose, so he could be hanging out with me.” Like any proud father, Costner eagerly welcomed his son into the world of filmmaking, cherishing the opportunity to share this experience with him.

“Horizon: An American Saga” promises to captivate audiences with its exploration of the Old West and the profound impact of the Civil War on the nation. With a stellar cast including Costner, Miller, and other talented actors, the film is poised to deliver an emotional and unforgettable journey through a tumultuous period in American history.

As Hayes Costner embarks on his acting career, he joins his father’s illustrious legacy in the entertainment industry, adding another chapter to the Costner family’s remarkable story.