Diane von Furstenberg canceled her celebrity-heavy “Tanner Hall” Saturday screening after personally speaking to Mayor Bloomberg. She and Barry Diller were due to host the event at the UA Theater in Southampton with an after-party at Nobu, but called it off after heeding hurricane warnings from hizzoner. The film was co-directed by Diane’s daughter, Tatiana von Furstenberg, and Francesca Gregorini, the stepdaughter of Ringo Starr. Among the star-and-socialite studded crowd that had been expected were its star Rooney Mara, billionaire Ron Perelman, Andres and Lauren Santo Domingo, V
ito and Lola Schnabel, Jay McInerney, Jane Wenner, Stefano Tonchi, Gina Gershon and Stavros Niarchos.