At yesterday’s Cinema Society screening of Madonna’s new film W.E., held at MoMA and sponsored by Piaget, the pop star turned director confessed that she was in dire need of a drink. “I have a really big knot in my stomach. And no one has offered me a glass of Champagne, like they did [at the screenings] in Venice or Toronto or London,” she announced before the movie started. “So I’m sober, and I hope I like the film.” The audience, Madonna noted, included artists she reveres, like Julian Schnabel and Patti Smith. “It’s added an extra layer of tension,” she added humbly.