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Cate Blanchett What: Dress by Armani Privé featuring Swarovski crystals; jewels by Tiffany & Co. Photo: Jason Merritt/2016 Getty Image... more
Cate Blanchett What: Dress by Armani Privé featuring Swarovski crystals; jewels by Tiffany & Co. Photo: Jason Merritt/2016 Getty Images
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Leonardo DiCaprio, Kate Winslet What: He wears a suit by Armani; cuff links and tuxedo studs by ESTABLISHED Jewelry. She wears a dress by Ra... more
Leonardo DiCaprio, Kate Winslet What: He wears a suit by Armani; cuff links and tuxedo studs by ESTABLISHED Jewelry. She wears a dress by Ralph Lauren.
Photo: Jason Merritt/2016 Getty Images
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Saoirse Ronan What: Dress by Calvin Klein Collection.
Photo: Jason Merritt/2016 Getty Images
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Charlize Theron What: Dress by Dior Haute Couture; jewels by Harry Winston.
Photo: Jason Merritt/2016 Getty Images
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Brie Larson What: Dress by Gucci.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Jennifer Lawrence What: Dress by Dior Haute Couture; jewels by Chopard.
Photo: George Pimentel/WireImage
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Kerry Washington What: Dress by Atelier Versace; jewels by Harry Winston; shoes by Gianvito Rossi.
Photo: Jason Merritt/2016 Getty Images
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Lady Gaga What: Dress by Brandon Maxwell.
Photo: Jason Merritt/2016 Getty Images
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Alicia Vikander What: Dress by Louis Vuitton.
Photo: Jason Merritt/2016 Getty Images
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Julianne Moore What: Dress and jewels by Chanel.
Photo: Todd Williamson/2016 Todd Williamson
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Reese Witherspoon What: Dress by Oscar de la Renta; jewels by Tiffany & Co.; shoes by Jimmy Choo.
Photo: Jason Merritt/2016 Getty Images
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Rachel McAdams What: Dress by August Getty Atelier.
Photo: VALERIE MACON
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Charlotte Rampling What: Dress by Armani.
Photo: Todd Williamson/2016 Todd Williamson
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Rooney Mara What: Dress by Givenchy Haute Couture by Riccardo Tisci.
Photo: Jason Merritt/2016 Getty Images
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Emily Blunt What: Dress by Prada.
Photo: Jason Merritt/2016 Getty Images
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Sofía Vergara What: Dress by Marchesa; jewels by Lorraine Schwartz.
Photo: Todd Williamson/2016 Todd Williamson
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Heidi Klum What: Dress by Marchesa.
Photo: Todd Williamson/2016 Todd Williamson
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Chrissy Teigen, John Legend What: She wears a dress by Marchesa; jewels by Lorraine Schwartz; clutch by Swarovski. He wears a watch by Bulgari; c... more
Chrissy Teigen, John Legend What: She wears a dress by Marchesa; jewels by Lorraine Schwartz; clutch by Swarovski. He wears a watch by Bulgari; cuff links by David Yurman.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Margot Robbie What: Dress by Tom Ford; jewels by Forevermark Diamonds.
Photo: VALERIE MACON
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Sandy Powell Photo: Todd Williamson/2016 Todd Williamson
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Amy Poehler What: Dress by Andrew GN; shoes by Brian Atwood.
Photo: Jason Merritt/2016 Getty Images
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Naomi Watts, Liev Schreiber What: She wears a dress by Armani; jewels and clutch by Bulgari; shoes by Stuart Weitzman. He wears a tuxedo by Burbe... more
Naomi Watts, Liev Schreiber What: She wears a dress by Armani; jewels and clutch by Bulgari; shoes by Stuart Weitzman. He wears a tuxedo by Burberry; watch by Tiffany & Co.
Photo: Jason Merritt/Getty Images
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Tina Fey What: Dress by Atelier Versace; jewels by Bulgari.
Photo: Jason Merritt/2016 Getty Images
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Mindy Kaling What: Dress by Elizabeth Kennedy.
Photo: VALERIE MACON
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Priyanka Chopra What: Dress by Zuhair Murad.
Photo: Jason Merritt/2016 Getty Images
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Olivia Wilde, Jason Sudeikis What: Dress by Valentino Haute Couture.
Photo: Jason Merritt/2016 Getty Images
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Eddie Redmayne What: Suit by Alexander McQueen.
Photo: Todd Williamson/2016 Todd Williamson
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Whoopi Goldberg What: Dress by the Dames of New York.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Patricia Arquette Photo: Todd Williamson/2016 Todd Williamson
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Jennifer Jason Leigh What: Dress by Marchesa; jewels by Piaget.
Photo: Todd Williamson/2016 Todd Williamson
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Common What: Tuxedo by Dolce & Gabbana.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Aaron Rodgers, Olivia Munn What: He wears a tuxedo by Isaia; shoes by Salvatore Ferragamo; tuxedo studs and cuff links by Neil Lane; watch by Pia... more
Aaron Rodgers, Olivia Munn What: He wears a tuxedo by Isaia; shoes by Salvatore Ferragamo; tuxedo studs and cuff links by Neil Lane; watch by Piaget. She wears a dress by Stella McCartney; jewels by Forevermark Diamonds.
Photo: Todd Williamson/2016 Todd Williamson
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Matt Damon, Luciana Damon What: He wears a suit by Versace. She wears a dress by Atelier Versace.
Photo: Todd Williamson/2016 Todd Williamson
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Chadwick Boseman Photo: Jason Merritt/2016 Getty Images
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Jacob Tremblay Photo: Todd Williamson/2016 Todd Williamson
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Jared Leto What: Suit by Gucci; watch by Bulgari.
Photo: Jason Merritt/2016 Getty Images
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Daisy Ridley What: Dress by Chanel Haute Couture; shoes by Christian Louboutin; clutch by Chanel; jewels by Chanel Fine Jewelry.
Photo: Jason Me... more
Daisy Ridley What: Dress by Chanel Haute Couture; shoes by Christian Louboutin; clutch by Chanel; jewels by Chanel Fine Jewelry.
Photo: Jason Merritt/2016 Getty Images
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Isla Fisher What: Dress by Marchesa.
Photo: Jason Merritt/2016 Getty Images
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The Weeknd What: Tuxedo by Dior Homme.
Photo: VALERIE MACON
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Giuliana Rancic What: Dress by Georges Chakra; shoes by Rene Caovilla; jewels by Forevermark Diamonds; watch by Samsung.
Photo: Jason Merritt/Ge... more
Giuliana Rancic What: Dress by Georges Chakra; shoes by Rene Caovilla; jewels by Forevermark Diamonds; watch by Samsung.
Photo: Jason Merritt/Getty Images
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Christian Bale, Sibi Blazic What: Tuxedo by Dolce & Gabbana.
Photo: Steve Granitz/2016 Steve Granitz
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Sylvester Stallone, Jennifer Flavin Photo: Jason Merritt/2016 Getty Images
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Michael Keaton What: Tuxedo by Dolce & Gabbana.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Roger Federer What: Tuxedo and shoes by Louis Vuitton.
Photo: Steve Granitz/Getty Images
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Giannina Facio, Ridley Scott Photo: Jason Merritt/2016 Getty Images
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Jennifer Garner What: Dress by Atelier Versace.
Photo: Todd Williamson/2016 Todd Williamson
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Joy Mangano Photo: George Pimentel/2016 George Pimentel
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Benicio del Toro Photo: Steve Granitz/2016 Steve Granitz
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Charlotte Riley, Tom Hardy What: She wears a dress by Gauri & Nainika; jewels and clutch by Bulgari. He wears a suit by Gucci; watch by Bulga... more
Charlotte Riley, Tom Hardy What: She wears a dress by Gauri & Nainika; jewels and clutch by Bulgari. He wears a suit by Gucci; watch by Bulgari.
Photo: Jason Merritt/2016 Getty Images
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Sarah Silverman What: Shoes by Sarah Flint.
Photo: Todd Williamson/2016 Todd Williamson
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Eniko Parrish, Kevin Hart Photo: Jason Merritt/2016 Getty Images
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Dev Patel What: Tuxedo by Burberry.
Photo: Todd Williamson/2016 Todd Williamson
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Sophie Turner What: Dress by Galvan for Opening Ceremony x Swarovski; shoes by Christian Louboutin; jewels by Tiffany & Co.
Photo: Jason Mer... more
Sophie Turner What: Dress by Galvan for Opening Ceremony x Swarovski; shoes by Christian Louboutin; jewels by Tiffany & Co.
Photo: Jason Merritt/2016 Getty Images
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Kate Capshaw, Steven Spielberg Photo: Todd Williamson/2016 Todd Williamson
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Pharrell Williams, Helen Lasichanh What: Suit by Lanvin.
Photo: Ethan Miller/2016 Getty Images
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Lily Cole What: Dress by Vivienne Westwood.
Photo: VALERIE MACON
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Cheryl Boone Isaacs Photo: VALERIE MACON
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Meg LeFauve Photo: Jeff Vespa/2016 Jeff Vespa
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Alejandro González Iñárritu, Maria Eladia Hagerman Photo: Todd Williamson/2016 Todd Williamson
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Jason Segel What: Watch by Piaget.
Photo: Jeff Vespa/2016 Jeff Vespa
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Michael Fassbender Photo: Jeff Vespa/2016 Jeff Vespa
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Henry Cavill What: Suit by Dunhill.
Photo: Todd Williamson/2016 Todd Williamson
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Sacha Baron Cohen What: Tuxedo by Dolce & Gabbana.
Photo: Todd Williamson/2016 Todd Williamson
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Tom McCarthy, Wendy Merry McCarthy What: Wendy wears jewels by David Yurman.
Photo: Jason Merritt/2016 Getty Images
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David Lang Photo: AFP
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Richard Kind Photo: Todd Williamson/2016 Todd Williamson
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Andra Day What: Gown by SAFiYAA; clutch by Swarovski; shoes by Pedro Garcia; jewels by Open Hearts by Jane Seymour and CSARITE.
Photo: Jason Mer... more
Andra Day What: Gown by SAFiYAA; clutch by Swarovski; shoes by Pedro Garcia; jewels by Open Hearts by Jane Seymour and CSARITE.
Photo: Jason Merritt/2016 Getty Images
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John Lasseter, Bennett Lasseter Photo: Jason Merritt/2016 Getty Images
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J.K. Simmons, Michelle Schumacher Photo: Todd Williamson/2016 Todd Williamson
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Will Poulter Photo: Todd Williamson/2016 Todd Williamson
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Lee Byung-hun What: Suit by Gucci; watch by Bulgari.
Photo: Todd Williamson/2016 Todd Williamson
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Finn Wittrock Photo: Todd Williamson/2016 Todd Williamson
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Tom Hooper What: Tuxedo by Burberry.
Photo: Jeff Kravitz/2016 Jeff Kravitz
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Henry Hughes Photo: Todd Williamson/2016 Todd Williamson
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Dede Gardner Photo: Steve Granitz/2016 Steve Granitz
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Benjamin Cleary, Chloe Pirrie Photo: Ethan Miller/2016 Getty Images
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Tobias Lindholm, Pilou Asbæk, Tuva Novotny, Caroline Blanco Photo: Ethan Miller/2016 Getty Images
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George Miller, Margaret Sixel Photo: Todd Williamson/2016 Todd Williamson
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Claude Lanzmann Photo: ANGELA WEISS
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Sanjay Patel, Nicole Paradis Grindle Photo: VALERIE MACON
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Adam Benzine Photo: VALERIE MACON
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Jimmy Napes, Sam Smith What: Sam Smith wears a suit by Dunhill.
Photo: VALERIE MACON
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Amanda Docter, Pete Docter, Jonas Rivera, Michele Rivera Photo: Jason Merritt/2016 Getty Images
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Jordyn Blum, Dave Grohl What: Tuxedo by Burberry.
Photo: Steve Granitz/2016 Steve Granitz
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Duke Johnson Photo: VALERIE MACON
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Adam McKay, Shira Piven What: Suit by J.Hilburn.
Photo: Steve Granitz/2016 Steve Granitz
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Benjamin Cleary, Serina Armitage Photo: VALERIE MACON
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Hank Corwin Photo: VALERIE MACON
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Duane Howard Photo: Steve Granitz/2016 Steve Granitz
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Randy Thom Photo: Ethan Miller/2016 Getty Images
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Stephan Moccio Photo: Todd Williamson/2016 Todd Williamson
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Siân Grigg Photo: VALERIE MACON
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Carter Burwell, Christine Scuilli Photo: VALERIE MACON
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Andy Serkis, Lorraine Ashbourne Photo: Todd Williamson/2016 Todd Williamson
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Gena Rowlands Photo: Steve Granitz/2016 Steve Granitz
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Edward Lachman Photo: Jason Merritt/2016 Getty Images
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Forrest Goodluck Photo: Jason Merritt/2016 Getty Images
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Evgeny Afineevsky, Den Tolmor Photo: Ethan Miller/2016 Getty Images
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Courtney Marsh, Jerry Franck Photo: VALERIE MACON
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Diane Warren What: Clothes by Armani.
Photo: Jason Merritt/2016 Getty Images
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Phyllis Nagy Photo: Todd Williamson/2016 Todd Williamson
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Abraham Attah What: Tuxedo by Dolce & Gabbana.
Photo: Jason Merritt/2016 Getty Images