Kevin Costner Wanted Son Hayes in 'Horizon' So They Could 'Hang Out'

Emma McIntyre/Getty ImagesKevin Costner is beyond thrilled about his son Hayes entering the world of acting. Costner, 69, took to Instagram on Sunday, March 3, to share a heartfelt post about the 15-year-old making his acting debut in Horizon: An American Saga. “It’s your movie you get to pick who you hang out with Really proud of my son, Hayes, for making his acting debut in #HorizonAmericanSaga,” Costner wrote alongside a clip from the trailer. “And thanks to all of you for the love you’ve shown our trailer this week. I couldn’t be more excited to share this with you.” The clip shows a barrage of gunfire centered around Hayes’ character and his family, who he’s ushering into a door beneath the floorboards of a house. Kevin Costner's Son Hayes Set to Appear in Actor's New Film “The best part of the Horizon: Part 1 trailer,” Costner wrote over the video as Hayes squats down amid the chaos. When Hayes says “I’m going to be with dad,” he shuts the door and “my son” appears on the screen