ers are Steven and Heather Mnuchin, Viacom’s Deborah and Philippe Dauman, Tamara Mellon, Christine Taylor and Ben Stiller, Cate Blanchette, Susan and Robert Downey,Jr., and Debra and Hugh Jackman. Next stop is The Weinstein Company’s Pre-Oscar party at the Soho House, sponsored by MontBlanc, celebrating their n