Kevin Costner stars in new two-part Western film Horizon: An American Saga
First teaser trailer released yesterday by Warner Bros.
Chapter 1 hits theaters June 2024, Chapter 2 in August 2024
Described as a sweeping chronicle of Civil War expansion and settlement of the American West
42-second preview shows Costner on horseback with shotgun
Marks actor's return to playing gunslingers in the 1860s time period
Horizon pulled Costner away from hit show Yellowstone during filming
Epic story was too big for just one movie, split into two parts