THE notion that film inspires fashion is one of the style world’s hoariest clichés. But in the case of “Black Swan,” in which Natalie Portman plays an ambition-maddened dancer, that chestnut bears some truth. Darren Aronofsky’s Grand Guignol of a film both reflects — and anticipates — a trend in the making, its multilayered tutus, feathers and cobwebby knits attesting to a shift in the fashion wind.
The kinky costumes in “Black Swan” were the brainchild of the costume designer Amy Westcott, working with Kate and Laura Mulleavy of Rodarte, a label known for its fusion of chastity and chills. The Mulleavy sisters, celebrated for their raw (and often goth-inflected) fabric treatments, conceived a look for Ms. Portman’s dancer in the dark that echoes the movie’s alternating moods of innocence and iniquity.