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 48 of 54 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 48 Elizabeth Olsen and Patricia Arquette went with all-black looks for the Vanity Fair and Barneys New York event for OXFAM at Chateau Marmont. Previous Next Start Slideshow Kristen StewartChris PineKerry WashingtonLeonardo DiCaprioOprah WinfreyMatt BomerJosh HutchersonRooney MaraJesse Tyler FergusonSarah Hyland