Sienna Miller admits her relationship with Jude Law had "run its course".

The couple decided to end their 15-month romance in January - after getting back together following their split on 2006 after Jude cheated on her with his children's nanny - but the actress insists the break-up was amicable as they both realised it wasn't working.

Talking about Jude, Sienna told The Guardian newspaper: "Apparently, we were engaged, which was totally untrue. We weren't. And I think this happens in everyone's lives: you get back together, you try and make it work, and it doesn't. It's not acrimonious, it had run its course."

The 29-year-old beauty is now looking forward to turning 30 because things are a lot calmer in her life.

Sienna said: "I feel like I'm in a very different place to where I was. I feel like I experienced my 20s in all their glory and all their disastrousness, and now I feel much more calm. It feels like a new, more serious decade."