MOONLIGHTING: A boudoir-style party hosted by Camilla Al Fayed for hip Swedish brand Acne’s latest issue of Acne Paper at the Ritz in Paris last week wasn’t all fun for the folks at Lanvin, who seized the occasion to shoot their next men’s wear campaign. “I wanted a real setting. I didn’t want anything too contrived. We’ll see how the pictures look,” said Alber Elbaz. “We wanted to shoot at night, but nothing too posed,” added Lucas Ossendrijver, Lanvin’s men’s wear designer. The campaign, shot by regular Acne photographer Andreas Larsson, will break this summer. Look out in the background for party guests, including Erin O’Connor, Roxane Mesquida, Dolores Chaplin, Malcolm McLaren and Haider Ackermann, plus Velvet d’Amour, the plus-size model who delivered a surprise burlesque performance. Mesquida said she’s borrowed tons of Acne T-shirts and jeans for her latest movie, “Debut,” about a girl in denial that she’s pregnant. Acne chief executive Mikael Schiller said the Swedish brand is set to open stores in Amsterdam, Sydney and Melbourne, Australia, this year.