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InStyle's editorial guidelines Updated on January 26, 2015 @ 12:00PM Pin Share Tweet Email Photo: Frazer Harrison/Getty Images SAG 2015 Red Carpet Arrivals 01 of 64 Julia Roberts OConnor-Arroyo/AFF-USA.com Julia Roberts in Givenchy. 02 of 64 Keira Knightley Kevin Mazur/WireImage Keira Knightley in Erdem. 03 of 64 Julianne Moore Kevin Mazur/WireImage Julianne Moore in Givenchy and Chopard jewelry. 04 of 64 Jennifer Aniston John Shearer/Invision/AP Jennifer Aniston in vintage Galliano and Fred Leighton jewelry. 05 of 64 Lupita Nyong'o FREDERIC J. BROWN/AFP/Getty Images Lupita Nyong'o in Elie Saab. 06 of 64 Reese Witherspoon Jordan Strauss/Invision/AP Reese Witherspoon in Giorgio Armani and Harry Winston jewelry. 07 of 64 Matthew McConaughey and Camila Alves Dimitrios Kambouris/WireImage Matthew McConaughey in a cerulean and black tuxedo and Camila Alves in a sleeveless purple gown. 08 of 64 Emma Stone Jordan Strauss/Invision/AP Emma Stone in Dior Couture. 09 of 64 Amy Poehler Kevork Djansezian/Getty Images Amy Poehler in a blue gown and Effy Jewelry. 10 of 64 Viola Davis © OConnor-Arroyo/AFF-USA.com Viola Davis in Max Mara. 11 of 64 Sofia Vergara Dimitrios Kambouris/WireImage Sofia Vergara in Donna Karan Atelier and Kay Jewelers jewelry. 12 of 64 Julianna Margulies Kevin Mazur/WireImage Julianna Margulies in Giambattista Valli. 13 of 64 Meryl Streep Kevin Mazur/WireImage Meryl Streep in a Lanvin. 14 of 64 Julia Louis-Dreyfus Kevin Mazur/WireImage Julia Louis-Dreyfus in Monique Lhuillier. 15 of 64 Emilia Clarke Frazer Harrison/Getty Images Emilia Clarke in Donna Karan Atelier and Cartier jewelry. 16 of 64 Michael Keaton Jordan Strauss/Invision/AP Michael Keaton in a tuxedo. 17 of 64 Rosamund Pike FREDERIC J. BROWN/AFP/Getty Images Rosamund Pike in Dior. 18 of 64 Naomi Watts Kevin Mazur/WireImage Naomi Watts in Balenciaga. 19 of 64 Eddie Redmayne Kevin Mazur/WireImage Eddie Redmayne in Prada. 20 of 64 Amanda Peet Jordan Strauss/Invision/AP Amanda Peet in J. Mendel. 21 of 64 Natalie Dormer Kevork Djansezian/Getty Images Natalie Dormer in Naeem Khan and Kimberly McDonald jewelry. 22 of 64 Tatiana Maslany Jeff Kravitz/FilmMagic Tatiana Maslany in Oscar de la Renta with Graziela Gems earrings, and Norman Silverman, EF Collection, and Melissa Kaye Jewelry rings. 23 of 64 Nikolaj Coster-Waldau Frazer Harrison/Getty Images Nikolaj Coster-Waldau in a tuxedo. 24 of 64 Laverne Cox Steve Granitz/WireImage Laverne Cox in a Johanna Johnson gown and Stuart Weitzman shoes with Forevermark jewelry and a Judith Leiber clutch. 25 of 64 Maggie Gyllenhaal Kevin Mazur/WireImage Maggie Gyllenhaal in Thakoon. 26 of 64 Gretchen Mol Dimitrios Kambouris/WireImage Gretchen Mol in Dennis Basso with an Edie Parker clutch. 27 of 64 Ty Burrell Frazer Harrison/Getty Images Ty Burrell in Dolce amp Gabbana. 28 of 64 Emmy Rossum Kevork Djansezian/Getty Images Emmy Rossum in Armani Prive. 29 of 64 Kaley Cuoco Mike Blake/Reuters Kaley Cuoco in Romona Keveza. 30 of 64 Sarah Hyland Steve Granitz/WireImage Sarah Hyland in Vera Wang. 31 of 64 Felicity Jones Kevork Djansezian/Getty Images Felicity Jones in Balenciaga. 32 of 64 Joanna Newsom and Andy Samberg Stefanie Keenan/WireImage Joanna Newsom in a multicolored polka-dot dress and Andy Samberg in a tuxedo. 33 of 64 Uzo Aduba Dimitrios Kambouris/WireImage Uzo Aduba in Angel Sanchez. 34 of 64 Kevin Costner and Christine Baumgartner Ethan Miller/Getty Images Kevin Costner in a tuxedo and Christine Baumgartner in a pink gown. 35 of 64 Natasha Lyonne Jordan Strauss/Invision/AP Natasha Lyonne in a beige and black gown. 36 of 64 Lenny Kravitz Theo Wargo/WireImage Lenny Kravitz in Saint Laurent. 37 of 64 Anna Chlumsky Theo Wargo/WireImage Anna Chlumsky in a red and silver gown. 38 of 64 Kelly Macdonald Frazer Harrison/Getty Images Kelly Macdonald in Moschino. 39 of 64 Ellar Coltrane Theo Wargo/WireImage Ellar Coltrane in a black suit and Louis Leeman shoes. 40 of 64 Paula Patton Jordan Strauss/Invision/AP Paula Patton in a white gown and Jerome C. Rousseau pumps. 41 of 64 Edie Falco Kevin Mazur/WireImage Edie Falco in a red gown. 42 of 64 Kit Harington Kevin Mazur/WireImage Kit Harington in a tuxedo. 43 of 64 Julie Bowen Kevork Djansezian/Getty Images Julie Bowen in Georges Hobeika with Effy Jewelry earrings and an Effy Jewelry ring. 44 of 64 Mayim Bialik Steve Granitz/WireImage Mayim Bialik in Christian Siriano and Ivanka Trump jewelry, a Graziela Gems ring, and an Effy Jewelry bracelet. 45 of 64 Sarah Paulson Dimitrios Kambouris/WireImage Sarah Paulson in a black and white ensemble with an Edie Parker clutch. 46 of 64 Matt McGorry Jordan Strauss/Invision/AP Matt McGorry in a tuxedo. 47 of 64 Danielle Brooks Jordan Strauss/Invision/AP Danielle Brooks in Christian Siriano. 48 of 64 Stephanie Beatriz Frazer Harrison/Getty Images Stephanie Beatriz in a paneled navy gown. 49 of 64 Steve and Nancy Carell Ethan Miller/Getty Images Steve Carell and wife Nancy in black ensembles. 50 of 64 Ethan Hawke and Heather Rutledge Kevork Djansezian/Getty Images Ethan Hawke in Calvin Klein and Heather Rutledge in a gold dress. 51 of 64 Rashida Jones Kevin Mazur/WireImage Rashida Jones in Emanuel Ungaro with Norman Silverman Diamonds jewelry. 52 of 64 Laura Carmichael Jeff Kravitz/FilmMagic Laura Carmichael in Vionnet. 53 of 64 Dascha Polanco Kevork Djansezian/Getty Images Dascha Polanco in a lacy white mermaid-tail dress. 54 of 64 Joanne Froggatt Ethan Miller/Getty Images Joanne Froggatt in Honor. 55 of 64 Taryn Manning Kevork Djansezian/Getty Images Taryn Manning in Elisabetta Franchi with Graziela Gems earrings, and EF Collection and Effy Jewelry rings. 56 of 64 Amy Ryan Steve Granitz/WireImage Amy Ryan in Honor. 57 of 64 Ariel Winter Dimitrios Kambouris/WireImage Ariel Winter in Zac Posen. 58 of 64 Sophie Turner Ethan Miller/Getty Images Sophie Turner in a black dress with an asymmetrical hemline and cutouts. 59 of 64 Patricia Arquette Jordan Strauss/Invision/AP Patricia Arquette in a dark green gown. 60 of 64 Joan Collins Dimitrios Kambouris/WireImage Joan Collins in a black sequined gown. 61 of 64 Melissa Rauch Ethan Miller/Getty Images Melissa Rauch in a two-tone strapless gown. 62 of 64 Sophia Bush OConnor-Arroyo/AFF-USA.com Sophia Bush in Vivienne Westwood. 63 of 64 Maria Menounos Theo Wargo/WireImage Maria Menounos in Romona Keveza and Neil Lane jewelry. 64 of 64 Kelly Osbourne Frazer Harrison/Getty Images Kelly Osbourne in a black top and an Elisabetta Franchi skirt with custom jewelry by Dana Rebecca Designs.