Sienna Miller on Why She Stepped Down From Her Fashion Line

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Her film schedule is busier than ever, with seven new releases on the way

Sienna Miller has her hands full. Just ask her.

“Between acting and humanitarian work and motherhood, my hands are full for now,” the busy Brit told The Hollywood Reporter on Oct. 23 at the Beverly Wilshire Hotel where she was set to speak in service of one of those three activities — the humanitarian work she does as Global Ambassador for the International Medical Corps.

IMC, a global nonprofit dedicated to saving lives through health care training, programs and relief efforts, held its annual awards gala on Thursday, honoring Lionsgate and IMC health care worker Tindilo Grace Losio. Miller delivered special remarks on stage as Teri Hatcher, Sanaa Lathan, Jamie Lynn-Sigler and stylists Jen Rade and Jeff Kim looked on.

Before the dinner, Miller discussed why humanitarian work has become such an integral part of her life. “As a mother, I’ve generally become far more emotional, and I feel open in a way that I didn’t really fathom before,” said the Erdem-clad actress. “It’s hard enough to raise a child in the comparative luxury that I live in, but I have enormous respect and an enormous sense of duty to try and raise funding and awareness for this organization that is providing a service that is completely unique and inspiring.”

Also inspiring is the 32-year-old’s résumé. Miller has seven movies on her slate, including the highly anticipated films Foxcatcher from director Bennett Miller and American Sniper from director Clint Eastwood. “I got pregnant and had a baby and took some time off, so it’s wonderful to come back and have these opportunities to work,” she said, referring to her daughter Marlowe with actor Tom Sturridge. “I’m trying not to think too much about it and instead just be very grateful for the opportunity and excited to be in a place unlike any situation I’ve been in before.”

A place she has been in before is the fashion world as the co-creative director with her sister Savannah of label Twenty8Twelve. The duo stepped down from line in January 2012, and Miller admitted that she’s not eager to give it another go. “It became too much with motherhood and acting,” she said. “My sister is launching a new label on her own and she’s incredible, so I’m excited about that. I don’t have particular aspirations to do that again, but never say never."