Actress Sienna Miller arrives at the New York premiere of the movie 'Factory Girl', Monday, Jan. 29, 2007. (AP Photo)

NEW YORK - Sienna Miller is both an actress and fashion icon. Still, there's one more title she'd like to have: mother. "I can't wait," she says in Life magazine's upcoming issue.

"In a world where you're encouraged to have your universe revolve around yourself, suddenly it doesn't. I know I want that because I have way too much love to give. If I have a child, it can all go there. Life, I think, will suddenly make sense."

In the new film "Factory Girl," the 25-year-old Miller stars as rich party girl and Andy Warhol muse Edie Sedgwick. She's also acted in the films "Casanova," "Layer Cake" and "Alfie."

Her on-and-off relationship with dashing ex-fiance Jude Law, 34, made her an overnight celebrity. She reportedly broke off their engagement in 2005 after he publicly apologized for cheating on her following reports that he had a fling with the nanny of his three children.

"What makes me sad (is) that there was a loss of innocence on my part," she says. "I was blinded by being a romantic person. I sort of feel like, `What if I never love that vulnerably and that openly again?' But I feel like I'm really strong. I feel like I grew up. People have made a huge deal of it."

The tabloid fixture has some hidden quirks.

"I have to sleep on the right side of the bed. I don't know why. ... I dip my French fries into chocolate milk shakes. I've never had a sex dream."