On Monday, HBO premiered “About Face: Supermodels Then and Now,” a new documentary by Timothy Greenfield-Sanders exploring the “complex relationship between physical appearance and the business of beauty.”  In a video interview with Claire Howorth of The Daily, Greenfield-Sanders, who is also a contributing photographer for Vanity Fair, talks about using the film to tackle cultural perceptions of age and beauty over the past few decades through the lens of  supermodels of the 1940s to the 1990s like Beverly Johnson, Jerry Hall, Christie Brinkley, and Isabella Rossellini, among others. The women, he says, are raw and candid about their roles in how our culture epitomizes and constructs beauty, opening up about everything from cosmetic surgery, a time when modeling was equated with prostitution, and their fears of growing old.