>> It's kind of scary how much influence she has...

Designers are now so keen to make clothes that Rachel Zoe deems suitable for her influential clients that many now ask her to help them devise their collections. "Yeah, that happens a lot. Like that red strapless Calvin Klein dress Keira wore to the New York premiere of Pride and Prejudice - I co-designed that with Francisco [Costa, the creative director of Calvin Klein.]" So how much input did she have? "Not much. Just the fabric, the cut, the style ..."