People.com Lifestyle Style The Best and Boldest Looks from the Cannes Red Carpet! The stars have arrived! See Sienna Miller's dusty blue Gucci gown and more standout style moments By People Staff Published on May 18, 2015 02:00 PM Share Tweet Pin Email 01 of 86 SIENNA MILLER Lionel Hahn/Abaca/Startraks in a two-tone blue Gucci gown with a dusty rose floral belt and romantic braided hairstyle. 02 of 86 MICHELLE RODRIGUEZ Foc Kan/FilmMagic wearing a sheer black crochet turtleneck gown to the festival’s closing ceremonies. 03 of 86 MARION COTILLARD Pascal Le Segretain/Getty in a custom jeweled Dior strapless mini with silver metallic pumps and Chopard diamond earrings at the premiere of Macbeth. 04 of 86 SIENNA MILLER Gisela Schober/Getty in a tiered ruffle Gucci gown with a bright red tie at the neck, tassel earrings and a teal clutch (both Bulgari) at the Macbeth premiere. 05 of 86 EVA LONGORIA Wenn in a curve-hugging white dress with fringe cape and matching white pumps at the Symphony in Blue by Johnnie Walker Blue Label event. 06 of 86 MARION COTILLARD Gisela Schober/Getty at the premiere of The Little Prince in a pale blue Dior gown with Chopard jewels (the hand piece is from her sustainably-sourced collection for the brand). 07 of 86 DITA VON TEESE David M. Benett/Getty in a retro (what else?) red jacquard Ulyana Sergeenko dress with matching heels, Swarovski clutch and lips (plus lots of Chopard diamonds) at the jewelry brand’s “Annabel’s in Cannes” party. 08 of 86 CARA DELEVINGNE Pascal Le Segretain/Getty wearing a crop-top/ladylike jacket combo (loving this) with a high-waisted white skirt and black-and-white strappy heels at the Vanity Fair and Chanel dinner. 09 of 86 JANE FONDA David Fisher/REX Shutterstock continuing her chic streak in a Schiaparelli Haute Couture gown with an over-the-top enormous choker-diamond collar combo at the premiere of Youth. 10 of 86 NIKKI REED Dominique Charriau/WireImage at the premiere of Youth wearing a textured navy dress with coral-motif detailing and a dramatic cape train (a must for Cannes!). 11 of 86 KENDALL JENNER George Pimentel/WireImage bringing the heat in a crop-top and ballgown skirt, huge diamond choker and matching bracelet (both Chopard) and red lips at the Youth premiere. (See it from every angle – even underneath!) 12 of 86 KARLIE KLOSS Andreas Rentz/Getty in a Louis Vuitton gown with a zipper and front clasp, plus two super-high slits and megawatt earrings, at the premiere of Youth. 13 of 86 CHANEL IMAN Venturelli/WireImage in a silk satin Donna Karan Atelier gown with an origami train, plus sparkling tassel earrings and a major ring at the Youth premiere. 14 of 86 JOAN SMALLS Andreas Rentz/Getty in very fancy lingerie – sorry, a white two-piece crochet gown – nude heels, giant earrings and a white clutch at the Youth premiere. 15 of 86 RACHEL WEISZ Gisela Schober/Getty also at the Youth premiere in a teal satin Prada gown with keyhole cutout and dangling earrings. 16 of 86 KARLIE KLOSS David Fisher/REX Shutterstock in an azure strapless dress studded with black 3D floral embellishments, plus modern De Grisogono jewelry and a nude lip at the jewelry brand’s party. 17 of 86 CARA DELEVINGNE Mike Marsland/Getty wearing a filmy Saint Laurent dress that’s really just a showcase for that emerald, ruby and diamond De Grisogono necklace and silver heels at the jewelry brand’s party. 18 of 86 RACHEL WEISZ Mike Marsland/WireImage attending the Youth photocall in a Magic Eye-style Chloé minidress with black, white and powder blue print, plus white heels. 19 of 86 CHANEL IMAN Venturelli/WireImage wearing a body-hugging nude embellished halter with De Grisogono earrings and a small Jimmy Choo minaudière and nude Kurt Geiger London heels at the jewelry brand’s party. 20 of 86 JANE FONDA Dominique Charriau/WireImage continuing her chic streak (and recycling one of her favorite necklace looks) in a white pantsuit at the Youth photocall. 21 of 86 JOAN SMALLS Venturelli/WireImage in a Givenchy Haute Couture by Riccardo Tisci black gown with patent halter and De Grisogono earrings at the jewelry line’s event. 22 of 86 MARY J. BLIGE David M. Benett/Getty wearing a black gown with metallic inserts and bright-yellow nails to the De Grisogono party. 23 of 86 MICHELLE RODRIGUEZ Gisela Schober/Getty wearing a sleek white dress with sculpted seams and a violet clutch, plus De Grisogono jewels, to the brand’s party. 24 of 86 CATE BLANCHETT Venturelli/WireImage in an elegant black Armani Privé gown with full sleeves, an origami-detail belt and a body-crossing sequin floral embroidery down the front at the Sicario premiere. 25 of 86 EMILY BLUNT Dominique Charriau/WireImage in a custom silk Stella McCartney gown with an open back, enormous Anna Hu Haute Joaillerie emeralds and Casadei heels at the Sicario premiere. 26 of 86 NATALIE PORTMAN David Fisher/REX Shutterstock in a body-skimming jade green Lanvin gown with a gold-tipped waist tie and black sandals at the Sicario premiere. 27 of 86 IRINA SHAYK David Fisher/REX Shutterstock doing that supermodel thing in a shiny golden gown with a halter and regular straps, thigh-high slit and matching high-shine Giuseppe Zanotti heels at the Sicario premiere. 28 of 86 ADRIANA LIMA Venturelli/WireImage in a black velvet bustier midi with pointed heels, emerald Chopard earrings and bloodred lips and nails at the Sicario premiere. 29 of 86 PETRA NEMCOVA Dominique Charriau/WireImage wearing an enormous blush Zuhair Murad ballgown scattered with blue flowers, plus lots and lots of Chopard diamonds, at the Sicario premiere. 30 of 86 DOUTZEN KROES David Fisher/REX Shutterstock wearing a retro-chic two-tone wiggle dress with a sweetheart neckline and Jimmy Choo heels to the Sicario premiere. 31 of 86 SIENNA MILLER Danny Martindale/FilmMagic in a slinky champagne Calvin Klein Collection dress and Jimmy Choo heels at the Euphoria Calvin Klein Women in Film event. 32 of 86 EMILY BLUNT David Fisher/REX Shutterstock wearing a Calvin Klein Collection dress and Salvatore Ferragamo heels (even though she prefers Converse sneakers) to the IFP/Euphoria Calvin Klein/Women in Film party. 33 of 86 RACHEL WEISZ David Fisher/REX Shutterstock wearing a Calvin Klein Collection halter with black accessories and barely-there jewels to the Euphoria Calvin Klein Women in Film event. 34 of 86 DIANE KRUGER Ian Gavan/Getty wearing a mini with cutout and studded star detailing with silver sandals and wavy locks to the Event SKY with Jaeger-LeCoulture party. 35 of 86 DOUTZEN KROES Mike Marsland/WireImage trading her sexy gown for a baggy navy Calvin Klein Collection suit at the Euphoria Calvin Klein Women in Film party. 36 of 86 PETRA NEMCOVA Venturelli/WireImage attending the Chopard Gold party in a red dress with laser-cut details,a gold clutch and red lips. 37 of 86 MELANIE LAURENT George Pimentel/WireImage in a crinkled pewter Calvin Klein Collection gown and matching silver clutch at the Euphoria Calvin Klein Women in Film party. 38 of 86 ADRIANA LIMA FameFlynet also at the Chopard party, also in a white gown with revealing details and bold red lips, plus major diamonds and Giuseppe Zanotti Design accessories. 39 of 86 MICHELLE RODRIGUEZ FameFlynet wearing a petal-embellished illusion neckline gown with multiple rings at the Chopard Gold Party. 40 of 86 KAT GRAHAM George Pimentel/WireImage in a belted navy Calvin Klein Collection sheath, nude heels and a metallic clutch at the Euphoria Calvin Klein Women in Film event. 41 of 86 IRINA SHAYK FameFlynet in a waist-tied white jumpsuit, megawatt necklace and red lips at the Chopard Gold event. 42 of 86 UMA THURMAN FameFlynet in an ice-blue Prada dress with an off-the-shoulder neckline, black heels, a geometric-detailed clutch and plenty of bling (of course) at the Chopard Gold party. 43 of 86 EVA LONGORIA Joel Ryan/Invision/AP in a gray lace sheer-paneled Gabriela Cadena gown featuring a plunging neckline and mini train, accessorized with Lorraine Schwartz jewels at the Inside Out premiere. 44 of 86 AMY POEHLER Matt Baron/BEImages in a black Stella McCartney strapless mermaid gown with metallic belt and Jacob & Co. jewelry at the Inside Out premiere. 45 of 86 ANDIE MACDOWELL Joel Ryan/Invision/AP in a plunging beaded ballgown with drop earrings and to-die-for bombshell waves at the Inside Out premiere. 46 of 86 MINDY KALING Matt Baron/BEImages in a pink and purple colorblock gown from The Mindy Project costume designer Salvador Perez featuring a thigh-high slit, paired with shiny silver accessories and L Dezen by Payal Shah jewels at the Inside Out premiere. 47 of 86 MéLANIE LAURENT Joel Ryan/Invision/AP in a completely beaded cap sleeve Zuhair Murad gown with flowing train at the Inside Out premiere. 48 of 86 NINA AGDAL Venturelli/WireImage in an ocean blue strapless ballgown with tulle skirt at the Inside Out premiere. 49 of 86 AMY POEHLER Mike Marsland/WireImage in a black and white printed mini featuring a tied waist, styled with strappy sandals and her new red hair do at the Inside Out photocall. 50 of 86 MINDY KALING Doug Peters/EMPICS/Landov wearing a calf-length sheath with pastel colorblock shoulders and geometric-shaped sandals at the Inside Out photocall. 51 of 86 CAMILA ALVES Mike Marsland/WireImage in a long pleated gown with plunging neckline and stunning diamond necklace at the Sea of Trees premiere. 52 of 86 EVA LONGORIA Arthur Mola/Invision/AP in a strapless Atelier Versace gown at the Carol premiere. 53 of 86 CATE BLANCHETT Arthur Mola/Invision/AP in a Giles gown at the Carol premiere. 54 of 86 SIENNA MILLER Venturelli/WireImage in a star-covered sheer custom Sonia Rykiel gown and matching cape, plus Bulgari jewels and clutch at the Carol premiere. 55 of 86 ROONEY MARA Arthur Mola/Invision/AP in a soft white halter dress at the Carol premiere. 56 of 86 SALMA HAYEK Arthur Mola/Invision/AP in a plunging purple Gucci gown at the Carol premiere. 57 of 86 SIENNA MILLER Venturelli/WireImage in a sheer blue kite-inspired Valentino dress at the Sea of Trees premiere. 58 of 86 NAOMI WATTS Eric Gaillard/Landov in a Giorgio Armani Privé silk multi-layer bustier dress and diamond drop earrings at the Sea of Trees premiere. 59 of 86 DIANE KRUGER Venturelli/WireImage in a shimmering Prada halter dress with train and Harry Winston jewels at the Sea of Trees premiere. 60 of 86 EMMA STONE Matt Baron/BEImages in a body-hugging floor-length ivory Dior Couture gown, plus a chain-link choker necklace at the Irrational Man premiere. 61 of 86 RACHEL WEISZ Venturelli/WireImage in a white long-sleeve gown featuring a cutout neckline and sequin embellishments at The Lobster premiere. 62 of 86 MICHELLE RODRIGUEZ Venturelli/WireImage in a long black gown with waist cutouts and sheer lace details at the Irrational Man premiere. 63 of 86 PARKER POSEY Paul Smith/Startraks in a shimmery gold two-piece ensemble, featuring a criss-cross top and long skirt, plus gold turban and sunglasses at the Irrational Man premiere. 64 of 86 MELISSA GEORGE EPA/Landov in a pair of black and silver shorts, plus a matching coat and peep toe pumps at the Irrational Man premiere. 65 of 86 SALMA HAYEK Pascal Le Segretain/WireImage in a strapless ball gown with tiered skirt and metallic embellishment, accessorized with sky-high platform pumps at the premiere of Tale of Tales. 66 of 86 EMMA STONE Samir Hussein/WireImage in a voluminous Oscar de la Renta mini with a see-through lace overlay and organza ruffle skirt, plus a killer Repossi ear cuff at a photocall for Irrational Man. 67 of 86 PARKER POSEY FameFlynet in a stripe see-through top with a coordinating A-line skirt, teamed with a bucket hat (do we spot a new hair color under there?) and oversize shades at a photocall for Irrational Man. 68 of 86 RACHEL WEISZ Venturelli/WireImage in a black wide-leg Narciso Rodriguez jumpsuit with a bodice cutout at a photocall for The Lobster. 69 of 86 EVA LONGORIA Splash News Online in a trumpet metallic gown featuring a plunging neckline at the Global Gift Gala. 70 of 86 MIRANDA KERR Splash News Online in a hot pink pleated Emanuel Ungaro gown with major cleavage and a super-high slit, plus drop earrings and a sparkly Oroton clutch at the Magnum "Pink and Black" party. 71 of 86 SIENNA MILLER FameFlynet in a black party dress with belted waist and deep V-neck, plus strappy heels at the Hollywood Reporter and Swarovski party. 72 of 86 JULIANNE MOORE Venturelli/WireImage in a deep red velour custom Givenchy gown and Chopard jewels at the premiere of Mad Max: Fury Road. 73 of 86 CHARLIZE THERON Pascal Le Segretain/Getty in a canary Dior gown with Chopard jewels at the premiere of Mad Max: Fury Road. 74 of 86 NAOMI WATTS Venturelli/WireImage in a lace Ralph Lauren Collection gown at the premiere of Mad Max: Fury Road. 75 of 86 MICHELLE RODRIGUEZ Pascal Le Segretain/WireImage in a sheer embroidered Zuhair Murad evening gown at the premiere of Mad Max: Fury Road. 76 of 86 MIRANDA KERR Action Press/Startraks in a David Koma two-piece mirror-embroidered ensemble with Christian Louboutin heels at a Magnum Beach event. 77 of 86 CHARLIZE THERON Venturelli/WireImage in a Valentino fringe mini with with Vita Fede earrings and a Jennifer Meyer emerald ring at a photocall for Mad Max: Fury Road. 78 of 86 SALMA HAYEK George Pimentel/WireImage in an Alexander McQueen sheath covered in graphic roses and satin platform pumps at a photocall for Il Racconto Dei Racconti. 79 of 86 NAOMI WATTS EPA/Landov in a powder blue Elie Saab Haute Couture gown and BVLGARI jewelry for the festival’s opening ceremony of La Tête Haute. 80 of 86 LUPITA NYONG'O Venturelli/WireImage in a one-of-a-kind jade Gucci chiffon gown and Chopard jewels at the opening ceremony premiere of La Tête Haute. 81 of 86 JULIANNE MOORE Venturelli/WireImage in a dark and dramatic feather-and-crystal Armani Privé gown and Chopard jewels at the opening ceremony premiere. (Anyone else feeling feathery flashbacks to L’Oréal ambassador’s silver Chanel Couture moment from last year?) 82 of 86 NATALIE PORTMAN David Fisher/REX Shutterstock in a scarlet Dior gown with de Grisogono jewels at the opening ceremony premiere. 83 of 86 KARLIE KLOSS David Fisher/REX Shutterstock in an Atelier Versace number – perhaps inspired by Jennifer Lopez’s similar suit? – at the opening ceremony premiere. 84 of 86 SIENNA MILLER Gisela Schober/Getty in a navy one-shoulder Lanvin gown with a bow detail and Atelier Swarovski jewels at the opening ceremony premiere of La Tête Haute. 85 of 86 BAR REFAELI Venturelli/WireImage in a gathered ivory column Roland Mouret gown with a coordinating cream clutch at the opening ceremony premiere. 86 of 86 DOUTZEN KROES David Fisher/REX Shutterstock in a cut-out Atelier Versace gown, silver strappy Jimmy Choo sandals and Chopard jewels at the opening ceremony premiere.