Demi Moore arrived at the 2026 Cannes Film Festival before the opening ceremony on May 12 in a custom polka-dot dress from Jacquemus, turning an early festival appearance into one of the first fashion moments of the week. A breeze helped reveal the dress’s 3D features as she posed ahead of the ceremony.

Moore is joining Ruth Negga, Stellan Skarsgård, Chloé Zhao and others on the festival jury, and after posing with her fellow jurors she later gave solo shots in Look 69 from Jacquemus’s Fall 2026 collection. Stylist Brad Goreski dressed her in a strapless little white dress covered in primary colors — red, yellow, blue and black — across the belted bodice, billowy skirt and peplum, while her $1,690 Small Valérie Bag was cut from the same polka-dotted cloth as the daytime look. She finished the outfit with stark white cat-eye sunglasses from Morgenthal Frederics and Jacquemus’s python-printed Tourni Pumps.

The appearance fits a long-running Cannes relationship between Jacquemus and the red carpet, a connection that dates back to 2017 when the label’s larger-than-life sun hats became a festival staple on celebrities. This year, Moore’s look arrived with a different register — less spectacle than controlled statement — as she stepped into her role on the jury while the festival was only just beginning.

That timing mattered because Cannes had barely started when Moore made her first major appearance, giving the festival an immediate fashion marker before the opening ceremony even unfolded. The question now is not whether Jacquemus can command attention at Cannes; Moore’s two looks on May 12 showed it still can.