Margot Robbie, Rihanna, Chloë Sévigny and many of the best dresses of the week

High fashion requires a rare opportunity, and last week many parties were organized for the most stylish in the world. The Cannes Film Archive was the surest way to make a sharp entry and fashion statement. After portraying Sharon Tate on screen in Quentin Tarantino's video Once upon a time in HollywoodMargot Robbie rummaged through Chanel's archives and chose a look that echoes Tate's modern personal style: a mini-girlie dress, a line, paired with crystal embroidered leggings from the spring 2011 couture collection. paid a thoughtful tribute rather than retro mimicry.

Similarly, when the oldest of Cannes, Isabelle Huppert, came back to the festival to celebrate her first appearance in English since 1980, she did so in clothes that reflect her role. In Ira Sachs FrankieHuppert's movie star tackles the complexities of fame. Thus, for the premiere of the film, the actress dresses in idol of the morning in a vibrant and glamorous dress of reflective sequins of Armani Privé.

But it's not just fashion that catches the eye. At the launch of her ephemeral store Fenty Paris and the beginnings of her collection in partnership with LVMH, Rihanna combined a beige anorak and a miniskirt that managed to be utilitarian and sensual. The annual amfAR gala in Cannes is usually synonymous with ball gowns, but the model Adesuwa Aighewi gave this event an undeniable advantage in the dress with eyelets of the danish-South Korean designer Hyun Mi Nielsen. And the original singer Chloë Sévigny looked completely crazy about a complete set of Marine Greenhouse for her last day in Cannes.