The new trailer for Kevin Costner's western Horizon: An American Saga has been released ahead of the two-part epic's arrival in cinemas this summer.

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Costner's first western as director and star since 2003's Open Range is billed as "a multi-faceted chronicle covering the Civil War expansion and settlement of the American West" and "a story of America too big for one film".

The synopsis says the western "explores the lure of the Old West and how it was won - and lost - through the blood, sweat and tears of many".

"Spanning the four years of the Civil War, from 1861 to 1865, Costner's ambitious cinematic adventure will take audiences on an emotional journey across a country at war with itself, experienced through the lens of families, friends and foes all attempting to discover what it truly means to be the United States of America," the synopsis continues.

Starring alongside Costner are: Sienna Miller, Sam Worthington, Jena Malone, Owen Crow Shoe, Tatanka Means, Ella Hunt, Tim Guinee, Danny Huston, Colin Cunningham, Scott Haze, Tom Payne, Abbey Lee, Michael Rooker, Will Patton, Georgia MacPhail, Douglas Smith, Luke Wilson, Isabelle Fuhrman, Jamie Campbell Bower, Alejandro Edda, Wasé Chief, Michael Anganaro, Angus Macfadyen, Jon Beavers, Alex Nibley, Kathleen Quinlan, Etienne Kellici, Amos Jason Charging Cloud, Bodhi Okuma Linton, Gregory Cruz, James Russo, Jeff Fahey, David O'Hara, Chris Conner, Leroy M Silva, Bernardo Velasco, Tom Everett, Glynn Turman and Giovanni Ribisi.

The first part of Horizon: An American Saga will be released in Irish cinemas on 28 June.

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