\n<\/p>\n
Kevin Costner<\/strong><\/a> has nothing but love and admiration for Sienna Miller<\/strong><\/a>, whom he cast in Horizon: An American Saga<\/em>. A source exclusively breaks down how they\u2019ve been bonding on screen as well as off to Life & Style<\/em>.<\/p>\n \u201cSienna has never had a role as juicy as the one she has in Horizon<\/em> where she gets to play the full range of emotions, from romantic to tragic, and gets to show off her awesome ability to pull off a convincing historical American accent, which is something she has worked hard at for twenty years,\u201d the insider says.<\/p>\n Horizon: An American Saga<\/em> \u201cchronicles the incredible epic journey of the expansion of the American West, before and after the Civil War,\u201d according to a synopsis.<\/p>\n The synopsis continues, \u201cBetween the Native Americans who saw their lands getting colonized and those who were determined to settle there, sometimes at any cost, history is being written. In a flamboyant fresco where multiple destinies intertwine, dreams and hopes face obstacles and cruelty to offer a cinematic spectacle of exceptional scope and emotional depth.\u201d<\/p>\n Sienna, 42, plays Frances Kittredge in the film, a pioneer woman who was brought to the settlement by her husband.<\/p>\n \u201cShe looks amazing in the movie too, and she\u2019s a 100 percent believer in Kevin Costner. If the movie works, and it just might, she\u2019s finally on the A-list and will have her pick of roles. Kevin carefully cast this movie with people he\u2019s been dying to work with for years, and Sienna was at the top of that list and has the biggest part after Kevin himself.\u201d<\/p>\n However, it wasn\u2019t just Sienna\u2019s beauty that helped her nab the role.<\/p>\n The source adds that \u201cit\u2019s not just because she\u2019s Kevin\u2019s \u2018type\u2019 or sort of looks like Christine [Baumgartner]<\/strong>, Kevin\u2019s ex-wife<\/a>. Kevin genuinely sees Sienna as an underrated, important talent and part of the mission of Horizon<\/em> is taking her to the next level. Everything about this movie is close to Kevin\u2019s heart, including and maybe most importantly, Sienna\u2019s substantial, serious and emotional performance.\u201d<\/p>\n Both Sienna and Kevin, 60, attended the 2024 Cannes Film Festival as the Field of Dreams<\/em> star debuted Horizon: An American Saga<\/em> for the first time. Five of the actor\u2019s seven children accompanied him on the trip to France<\/a>, while Sienna attended with her boyfriend, Oli Green<\/strong>, and her daughter, Marlowe.<\/p>\n