Sienna Miller, Danny Huston, Giovani Ribisi, Sam Worthington, Luke Wilson, Michael Rooker, JEna Malone, Abbey Lee, Isabelle Furhman, Owen Crow She, Will Patton and Tatanka Means join Costner in his take on “How the West was Won.”

Looks a tad retrograde, as did the teaser trailer. But it’s big and sweeping.

June 28, Aug 16, the film will be released in two parts.