Charlize Theron

Charlize Theron in a Prada gown at the Chopard Trophy photocall on May 22.
Charlize Theron in a Prada gown at the Chopard Trophy photocall on May 22.
Anya Taylor-Joy in a Miu Miu gown at the Chopard Trophy photocall on May 22.
Julianne Moore in a Chanel Resort 2017 gown at the Vanity Fair and HBO Dinner, celebrating the Cannes Film Festival, on May 20.
Lily Collins in a Prabal Gurung dress at the Vanity Fair and HBO Dinner, celebrating the Cannes Film Festival, on May 20.
Tilda Swinton in a Schiaparelli gown at the Hollywood Foreign Press Association's 2017 Cannes Film Festival Event in honor of the International Rescue Committee on May 21.
Lily Collins in a Miu Miu dress at the Hollywood Foreign Press Association's 2017 Cannes Film Festival Event in honor of the International Rescue Committee on May 21.
Rihanna in a custom Adam Selman look at the Chopard ?SPACE Party?, hosted by Chopard's co-president Caroline Scheufele and Rihanna, in Cannes on May 19.
Adriana Lima in a Reem Acra gown at the Chopard ?SPACE Party?, hosted by Chopard's co-president Caroline Scheufele and Rihanna, in Cannes on May 19.
Bella Hadid in a Roberto Cavalli Couture gown and René Caovilla shoes at the Chopard ?SPACE Party?, hosted by Chopard's co-president Caroline Scheufele and Rihanna, in Cannes on May 19.
Kendall Jenner in a Ralph & Russo Couture gown at the Chopard ?SPACE Party?, hosted by Chopard's co-president Caroline Scheufele and Rihanna, in Cannes on May 19.
Eva Herzigova in a Saint Laurent by Anthony Vaccarello dress at the Chopard ?SPACE Party?, hosted by Chopard's co-president Caroline Scheufele and Rihanna, in Cannes on May 19.
Salma Hayek, left, and Chris Lee (both in Gucci) at the Women in Motion Awards Dinner at the 70th Cannes Film Festival on May 21.
Uma Thurman in an Atelier Versace gown at the Fashion for Relief event during the Cannes Film Festival on May 21.
Heidi Klum in a Marc Jacobs dress at the Fashion for Relief event during the Cannes Film Festival on May 21.
Paz Vega at the Fashion for Relief event during the Cannes Film Festival on May 21.
Maria Borges at the Fashion for Relief event during the Cannes Film Festival on May 21.
Naomi Campbell and Jordan's Queen Rania at the Fashion for Relief event during the Cannes Film Festival on May 21.
Bella Hadid in a Roberto Cavalli Couture gown at the Fashion for Relief event during the Cannes Film Festival on May 21.
Lottie Moss in an Ermanno Scervino look at the Fashion for Relief event during the Cannes Film Festival on May 21.
Kendall Jenner in an Alexandre Vauthier Couture ensemble at the Fashion for Relief event during the Cannes Film Festival on May 21.
Laura Dern in a Rodarte dress at the Twin Peaks premiere in L.A. on May 19.
Amanda Seyfried in a Versace dress at the Twin Peaks premiere in L.A. on May 19.
Sofia Boutella in a Prabal Gurung dress at The Mummy premiere in Sydney on May 2.
Annabelle Wallis in an Emilio Pucci gown at The Mummy premiere in Sydney on May 22.