Keira Knightley aux arrivées pour L.A. Première de PIRATES OF THE CARIBBEAN : DEAD MANS CHEST, Disneyland, Los Angeles, CA, 24 juin 2006. Photo par : Tony Gonzalez / Everett Collection - Photo & image de stock

VENICE - AUGUST 29: Keira Knightley arrives for the Opening Ceremony and the Atonement Premiere at the 64th Annual Venice Film Festival on August 29, 2007 in Venice, Italy

Jennifer Garner at arrivals for Part 2 - RED CARPET - 80th Annual Academy Awards Oscars Ceremony, The Kodak Theatre, Los Angeles, CA, February 24, 2008. Photo by: David Longendyke/Everett Collection

Keira Knightley at arrivals for PIRATES OF THE CARIBBEAN: DEAD MANS CHEST Premiere, Disneyland, New York, NY, June 24, 2006. Photo by: Michael Germana/Everett Collection

Jennifer Garner (wearing a 1928 vintage Van Cleef & Arpels necklace and Van Cleef & Arpels earrings) at arrivals for RED CARPET - 80th Annual Academy Awards Oscars Ceremony, The Kodak Theatre, Los Angeles, CA, February 24, 2008. Photo by: David Longe

Jennifer Garner at arrivals for The 2008 National Board of Review of Motion Picture Awards Gala, Cipriani Restaurant 42nd Street, New York, NY, January 15, 2008. Photo by: Desiree Navarro/Everett Collection

Natalie Portman at arrivals for BROTHERS New York Premiere, School of Visual Arts (SVA) Theater, New York, NY November 22, 2009. Photo By: Gregorio T. Binuya/Everett Collection

Rose Byrne (wearing a Valentino gown) at arrivals for 61st Primetime Emmy Awards - ARRIVALS, Nokia Theatre, Los Angeles, CA September 20, 2009. Photo By: Dee Cercone/Everett Collection

Jennifer Garner at arrivals for The 2008 National Board of Review of Motion Picture Awards Gala, Cipriani Restaurant 42nd Street, New York, NY, January 15, 2008. Photo by: Desiree Navarro/Everett Collection

January Jones at arrivals for ARRIVALS - 60th Annual Primetime Emmy Awards, Nokia Theatre, Los Angeles, CA, September 21, 2008. Photo by: Michael Germana/Everett Collection

Natalie Portman at arrivals for 81st Annual Academy Awards - ARRIVALS, Kodak Theatre, Los Angeles, CA 2/22/2009. Photo By: Dee Cercone/Everett Collection

Kate Winslet at arrivals for National Board of Review of Motion Picture Awards Gala, Cipriani Restaurant 42nd Street, New York, NY, January 15, 2008. Photo by: Lee/Everett Collection

Emily Blunt at arrivals for GNOMEO AND JULIET Premiere, El Capitan Theatre, Los Angeles, CA January 23, 2011. Photo By: Michael Germana/Everett Collection

Kate Winslet at arrivals for National Board of Review of Motion Picture Awards Gala, Cipriani Restaurant 42nd Street, New York, NY, January 15, 2008. Photo by: Lee/Everett Collection

Natalie Portman at arrivals for L.A. Premiere of THE DARJEELING LIMITED, Academy of Motion Picture Arts & Science AMPAS, Los Angeles, CA, October 04, 2007. Photo by: Adam Orchon/Everett Collection

Anne Hathaway at arrivals for Rachel Getting Married Gala Premiere, Roy Thomson Hall, Toronto, ON, September 06, 2008. Photo by: Kristin Callahan/Everett Collection

Winona Ryder at arrivals for 35th AFI Life Achievement Award and Tribute Dinner for Al Pacino, The Kodak Theatre, Los Angeles, CA, June 07, 2007. Photo by: Michael Germana/Everett Collection

Natalie Portman at arrivals for The New York Premiere of MR. MAGORIUM'S WONDER EMPORIUM, DGA Director's Guild of America Theatre, New York, NY, November 11, 2007. Photo by: Rob Rich/Everett Collection

Mandy Moore (wearing Chopard earrings) at arrivals for The 83rd Academy Awards Oscars - Arrivals Part 1, The Kodak Theatre, Los Angeles, CA February 27, 2011. Photo By: Gregorio T. Binuya/Everett Collection

Sharon Stone the host of the Princess Grace Foundation's 2004 Awards Gala, Cipriani 42nd St October 27, 2004 in New York City

Rachel McAdams at arrivals for THE LUCKY ONES Gala Premiere, Roy Thomson Hall, Toronto, ON, September 10, 2008. Photo by: Kristin Callahan/Everett Collection

Keira Knightley at arrivals for THE JACKET Premiere, Pacific ArcLight Theaters, New York, NY, February 28, 2005. Photo by: Effie Naddel/Everett Collection

Rachel McAdams at arrivals for THE LUCKY ONES Gala Premiere, Roy Thomson Hall, Toronto, ON, September 10, 2008. Photo by: Kristin Callahan/Everett Collection

Natalie Portman at arrivals for V FOR VENDETTA Premiere, Jazz at Lincoln Center Rose Theater, New York, NY, March 13, 2006. Photo by: Gregorio Binuya/Everett Collection

Natalie Portman at arrivals for V FOR VENDETTA Premiere, Jazz at Lincoln Center Rose Theater, New York, NY, March 13, 2006. Photo by: Gregorio Binuya/Everett Collection