STAR SPOT: Vogue aims to leverage its September cover star to drum up excitement for Fashion’s Night Out on Sept. 10. Charlize Theron, who appears in a burgundy silk-velvet Dior cocktail dress on the magazine’s cover, will make a personal appearance at the Dior boutique on 57th Street, where she will sign copies of the issue from 7 p.m. to 8 p.m. Nor will she be the only draw at Dior that night. Photographer Arthur Elgort will be on-site and take a photo of those clients who spend at least $2,500 on Dior merchandise in the course of the evening. In a luxury version of a gift-with-purchase, each client will receive a print of their photo, which will be signed by Elgort. They will also get a chance to have their makeup done by Dior makeup artist Ricky Wilson, and enjoy music spun by Rolling Stones offspring Alexandra Richards. — Marc Karimzadeh