Discomfort lurks beneath the winsome smiles in this image from "Girl Culture," captured at the Fitness America competition in Redondo Beach, Calif. Photographer Lauren Greenfield visits the Snite Museum of Art today to discuss the controversial show.Photos provided/LAUREN GREENFIELD

"I want to be a topless dancer or a showgirl," says Sheena, 15, shown here with her friend Amber in a department store fitting room in San Jose, Calif. Many of Lauren Greenfield's "Girl Culture" subjects are photographed looking (usually unhappily) at mirrors, although in this case the mirror is just out of frame.

In "Girl Culture," Lauren Greenfield documents the many "body projects" -- such as the fresh pedicure of Nikki, an aspiring Hollywood actress, displayed here in Gucci shoes -- that take up so much of American females' time, attention and disposable cash.
Photo provided/LAUREN GREENFIELD