The movie will follow the vantage point of Hamer, Gault, and the posse they assembled specifically to hunt down Bonnie and Clyde.
The film is being directed by John Lee Hancock (The Founder) and was penned by John Fusco (Marco Polo).
The story is based on the true events of Texas Ranger Frank Hamer (Costner) and ex-partner Maney Gault (Harrelson), who are drawn out of retirement in a last-ditch effort to hunt down Bonnie and Clyde in 1934.
Costner, Harrelson, Michael Malone, and Rod Lake are exec producers.