Oscars 2012: red carpet fashion live - in pictures

Berenice Bejo, Best Supporting Actress nominee, in Elie Saab Photograph: Steve Granitz/WireImage Jessica Chastain, Best Supporting Actress nominee, in Alexander McQueen Photograph: Steve Granitz/WireImage Melissa McCarthy, Best Supporting Actress nominee, in Marina Rinaldi Photograph: Steve Granitz/WireImage Milla Jovovich, presenter, in Elie Saab Photograph: Jason Merritt/Getty Images Rose Byrne in Vivienne Westwood Photograph: Steve Granitz/WireImage Shailene Woodley in Valentino Photograph: Kevin Mazur/WireImage George Clooney, Best Actor nominee, in Giorgio Armani, with Stacy Keibler in Marchesa Photograph: Steve Granitz/WireImage Michelle Williams, Best Actress nominee, in Louis Vuitton Photograph: Kevin Mazur/WireImage Rooney Mara, Best Actress nominee, in Givenchy Couture Photograph: Kevin Mazur/WireImage Viola Davis, Best Actress nominee, in Vera Wang Photograph: Kevin Mazur/WireImage Kristen Wiig in J Mendel Photograph: Kevin Mazur/WireImage Photograph: Kevin Mazur/Action images Octavia Spencer, Best Actress nominee, in Tadashi Shoji Photograph: Jason Merritt/Getty Images Sacha Baron Cohen, apparently wearing "John Galliano" Photograph: Jason Merritt/Getty Images Emma Stone in Giambattista Valli Photograph: Jason Merritt/Getty Images Jennifer Lopez in Zuhair Murad Photograph: Steve Granitz/WireImage Colin Firth in recycled Tom Ford, with his wife Livia Giuggioli, in eco Valentino Photograph: Steve Granitz/WireImage Ellie Kemper in Armani Prive Photograph: Jeff Vespa/WireImage Glenn Close, Best Actress nominee in Zac Posen Photograph: Kevin Mazur/WireImage Gwyneth Paltrow in Tom Ford Photograph: Kevin Mazur/WireImage Judy Greer in Monique Lhullier Photograph: Kevin Mazur/WireImage Leslie Mann in Roberto Cavalli Photograph: Kevin Mazur/WireImage Maya Rudolph in Johanna Johnson Photograph: Jeff Vespa/WireImage Brad Pitt, Best Actor nominee and Angelina Jolie in Versace Photograph: Jason Merritt/Getty Images Cameron Diaz in Gucci Photograph: Kevork Djansezian/Getty Images Gary Oldman wearing Paul Smith with his wife Alexandra Edenborough Photograph: Jason Merritt/Getty Images Natalie Portman in Vintage Dior Photograph: Ethan Miller/Getty Images Penelope Cruz Armani Prive Photograph: Kevin Mazur/WireImage Meryl Streep, Best Actress nominee in eco Lanvin Photograph: Jeff Vespa/WireImage