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

  • Sienna Miller
    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)

  • Sienna Miller
    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)

  • Sienna Miller
    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)

  • Sienna Miller
    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)

  • Sienna Miller
    Photo: Courtesy of Swarovski
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    In Prada and Atelier Swarovski jewelry