The VOGUE September Issue, a 125th Anniversary Collector's Edition, is here featuring Jennifer Lawrence on the cover. Inside, the movie star tells Jason Gay as much as she can about Darren Aronofsky's top-secret Mother!-and as much as possible about everything else. PLUS: Fifteen of the world's most legendary supermodels-both past and present-throw on the season's best denim and swap stories about their first cover shoots. ALSO IN THE ISSUE: Read about the exciting off-the-court ventures of two of the world's top athletes: Serena Williams, engaged and expecting a child, and LeBron James, co-founder (with wife Savannah) of a high-impact education program in Akron, Ohio.