Sienna Miller says Keira Knightley handled fame better than she did

London, October 20 (ANI): Sienna Miller has confessed to making "bad choices" in her personal and professional life, adding her fellow actress Keira Knightley handled fame better than she did.

The G.I. Joe star previously made headlines over her hard partying lifestyle, a string of failed relationships and wild antics at bashes.

"I've made some bad choices and done some stupid things. I haven't been as bright in some of the decisions i've made," the Daily Express quoted the 27-year-old as saying.

"Keira's just a more evolved person. I feel we live in the kind of culture now where you have to be very smart to navigate the right way, and i just don't have those smarts.

"I think with age and time it will change, but i can't obsess about it," she added.

A friend said: "Sienna's growing up. It's a conscious decision to show the world there's a serious actress behind the train wreck of a personal life." (ANI)