Actor Robert Duvall, star of the new Western film 'Open Range' poses with actor James Caan(L) at a party following the film's premiere in Hollywood August 11, 2003. Kevin Costner directed the film about a group of cowboys who are moving their cattle across the prairies of the west. The film, also stars Costner and Annette Bening and opens August 15 in the United States. Duvall and Caan starred together in the classic film 'The Godfather.' REUTERS/Fred Prouser