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Swinton's co-star Chalamet matched her pink-orange ensemble with a shiny metallic Tom Ford suit. 

The supermodel looked stunning in this bold Schiaparelli haute couture gown adorned with brass jewellery in the shape of lungs. She complemented the dress with Chopard jewellery. 

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The Hitman's Wife's Bodyguard star cleaned up nice in this navy blue bustier gown from Gucci.

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O'Connor is dashing in pink in this custom Loewe suit for the screening of Paul Verhoeven's wildly provocative Benedetta.

Penn's Chanel ensemble evoked French Riviera chic at a photocall for Flag Day, directed by her father Sean Penn.

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The British actress matched her purple-black ensemble with Gucci High Jewellery, of which she is the celebrity face this season.

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MacDowell showed off her natural grey hair on the red carpet, looking absolutely elegant and beautiful in a white Atelier Versace evening gown embellished with Swarovski crystals.

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The singer-actress went casual in Saint Laurent denim at the photocall for her new film, Jane Par Charlotte. 

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Stone returned to Cannes to host the amFAr Gala for the first time in seven years—and she did it with a bang, appearing on the red carpet in a Dolce & Gabbana gown with floral accents and jewellery by Chopard.

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Brody was all chic in black Dior suit, which he paired with a Chopard watch.

A jury member at this year's Cannes, Gyllenhaal was red hot in this Versace number complemented with Chopard jewellery. 

Rahim chose a grey Louis Vuitton suit and boots for the Bac Nord premiere.

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The actress paired her Chopard jewellery with Iris Van Herpen couture dress made from upcycled marine debris.

The Chinese actress sported one of the most stunning high jewellery at Cannes, a Bulgari pink gold poncho necklace with 64 amethyst beads, 61 rubellites, 35 tourmalines, and 80 brilliant cut diamonds. 

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