Popsugar Celebrity Oscars Celebrities at Oscars Preparties 2015 | Pictures The Hot Oscars Parties You May Have Missed February 25, 2015 by Nick Maslow View On One Page Photo 39 of 54 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 39 Emily Blunt got together with Rooney Mara, who hosted the Vanity Fair and Barneys New York event for OXFAM at the Chateau Marmont. Previous Next Start Slideshow Kristen StewartChris PineKerry WashingtonLeonardo DiCaprioOprah WinfreyMatt BomerJosh HutchersonRooney MaraJesse Tyler FergusonSarah Hyland