Sienna Miller, is that you?!
The actress looks nearly unrecognizable for her upcoming role in "Burnt," where she plays an up-and-coming chef opposite Bradley Cooper.
"I wore no makeup, [shaved] half my head, and gave myself a Little Lord Fauntleroy fringe, tattoos, and piercings," she tells Marie Claire in her gorgeous October cover story. "I was meant to be quite tough, a female chef in a man's world."
The 33-year-old star reveals that she's picking grittier roles now as she's learned to focus less on her physical appearance.
"What I've realized is you have to let go of looking beautiful, have no vanity," she tells the mag. "I'm focusing on not having to be glamorous now."
"You're always replaceable, and in your 20s, they want you to look a certain way," she continues. "Once I turned 30, there was a career shift. In my 20s, I was [playing] the Girlfriend, but now I want to focus on characters, on being a real person."
Another big shift in Sienna's life occurred when she had her daughter, Marlowe, in 2012. The single mom admits that life with her little one has made her more grounded.
"[It is] the most profoundly, deeply affecting thing. I didn't feel I had proper roots till I had her; I was whimsical and spontaneous," she declares. "I feel anchored in the way I was looking for, and our life is beautiful and simple. We go to the park; I take her to school; we go to the country and she gets muddy and rides ponies. You try to re-create the magic you remember."
Miller prefers to live a quiet life with her daughter -- away from the paparazzi. In fact, she even took legal action against photographers who were invading her privacy.
"The paparazzi sat outside my home in London, and everywhere I went, I was followed by 12 cars," she recalls. "It wasn't even safe to take my sister Savannah's kids out. My whole life was documented and manipulated."
Sienna sued London-based agency Big Pictures in 2008.
"I thought, 'I've got to put a law in place to make it illegal for people to sit outside my home.' I sought an injunction," she explains.
Talk about taking a stand!
Check out Sienna's full interview with Marie Claire on stands September 22.