Related: Sienna Miller Says She Adopted a Bunny She Met on the Horizon Set for Her Daughter (Exclusive) Speaking with PEOPLE ...

ET's Cassie DiLaura sat down with Horizon: An American Saga director and star Kevin Costner as well as stars Sienna Miller, Sam Worthington, Abbey Lee, Luke Wilson, Ella Hunt, Isabelle Fuhrman and ...

All About Her Daughters Horizon Actor Michael Rooker Reacts to Movie's Low Ticket Sales: Audiences Have to 'Learn How to Watch Real Cinema' Sienna Miller Gives Boho Bridal Vibes as She Joins the ...

First springing onto our screens in the early aughts, model and actor Sienna Miller is something of a British icon. And, more ...

Sienna Miller stepped out with her and ex Tom Sturridge’s 12-year-old daughter Marlowe for a family event in London April 1.

Miller made headlines when she graced the cover of Vogue while pregnant at 41. Sienna Miller is speaking out about the double standard she says women face when they choose to have kids at an older ...

Kevin Costner’s Western epic Horizon: An American Saga – Chapter 1 is finally now streaming at home after its cinema release ...

The actress shares her older daughter with ex Tom Sturridge and is mom to a second daughter with boyfriend Oli Green Dave Benett/Getty Sienna Miller's ... in June about Horizon: An American ...

Sienna Miller's daughter looks all grown up ... where she was filming Horizon. "I pretended it was a cat," she continued. "I just hid the ears. I was like, that's my kitten." ...