Cameron Diaz brought out another glamorous look for the Valentino Couture Fashion Week festivities this afternoon. The actress has been popping up for runway presentations since the festivities got under way on Monday. She sat front row at Versace with Diane Kruger and posed with Bar Refaeli at Dior, but it was her stop by Armani yesterday that brought a fun surprise. Cameron and Jessica Chastain were seated together when Jessica received a call about her Oscar nomination for The Help, and the crowd responded with a standing ovation. Cameron took a break from the action just yesterday for a meeting at Givenchy's Paris offices.