The wait is over for Kevin Costner fans who might be bummed he's not returning to Yellowstone. Fret not, since Horizon: An American Saga - Chapter 1 is finally out this week, with Chapter 2 following soon. Say what you will about the release strategy and the films, but this sprawling Western is a refreshing change of scenery from the wildly different content that's been gracing the box office as of late. Warner Bros. is bringing Costner's vision to life in cinemas everywhere, and he's got a wildly talented supporting cast to keep up the momentum in this three-hour first installment.