Sienna Miller’s Best Looks at Cannes: How the Festival Judge Ruled the Red Carpet Inline

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    Photo: Samir Hussein/WireImage
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    In Balenciaga

    CANNES, FRANCE - MAY 13: Sienna Miller attends the Jury photocall during the 68th annual Cannes Film Festival on May 13, 2015 in Cannes, France. (Photo by Samir Hussein/WireImage)

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    Photo: Venturelli/WireImage
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    In Lanvin and Atelier Swarovski jewelry

    CANNES, FRANCE - MAY 13: Juror Sienna Miller attends the opening ceremony dinner during the 68th annual Cannes Film Festival on May 13, 2015 in Cannes, France. (Photo by Venturelli/WireImage)

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    Photo: Neilson Barnard/Getty Images for Calvin Klein
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    In Calvin Klein Collection

    CANNES, FRANCE - MAY 18: Sienna Miller attends IFP, Calvin Klein Collection & euphoria Calvin Klein celebrate Women in Film at the 68th Cannes Film Festival on May 18, 2015 in Cannes, France. (Photo by Neilson Barnard/Getty Images for Calvin Klein)

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    Photo: Samir Hussein/WireImage
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    In Valentino Couture

    CANNES, FRANCE - MAY 16: Sienna Miller attends "The Sea Of Trees" Premiere during the 68th annual Cannes Film Festival on May 16, 2015 in Cannes, France. (Photo by Samir Hussein/WireImage)

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    Photo: Courtesy of Swarovski
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    In Prada and Atelier Swarovski jewelry

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    Photo: Dominique Charriau/WireImage
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    In Sonia Rykiel and a Bulgari bag and jewelry

    CANNES, FRANCE - MAY 17: Sienna Miller and Xavier Dolan attend the "Carol" Premiere during the 68th annual Cannes Film Festival on May 17, 2015 in Cannes, France. (Photo by Dominique Charriau/WireImage)

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    Photo: Jacopo Raule/GC Images
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    In Victoria Beckham with an Alexander McQueen bag

    CANNES, FRANCE - MAY 19: Sienna Miller is seen on day 7 of the 68th annual Cannes Film Festival on May 19, 2015 in Cannes, France. (Photo by Jacopo Raule/GC Images,)

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    Photo: Tristan Fewings/Getty Images
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    In Ralph Lauren Collection with a Nathalie Trad bag

    CAP D'ANTIBES, FRANCE - MAY 21: Actress Sienna Miller attends amfAR's 22nd Cinema Against AIDS Gala, Presented By Bold Films And Harry Winston at Hotel du Cap-Eden-Roc on May 21, 2015 in Cap d'Antibes, France. (Photo by Tristan Fewings/Getty Images)