Cannes 2025: Elle Fanning Dazzles in Custom Valentino Couture at “The Mastermind” Premiere
Elle Fanning made a notable return to the red carpet on the 11th day of the 78th Annual Cannes Film Festival in 2025, following her captivating appearances on days 10 and 9, where she received significant attention for her exquisite fashion choices inspired by the Armani Privé, Chanel, and Coach ready-to-wear collections, all while promoting her upcoming comedy-drama “Sentimental Value.”
While making a comeback to the spotlight as a true star and style icon, Elle Fanning, the 27-year-old L’Oréal Paris global brand ambassador, was spotted arriving at the premiere of “The Mastermind” dressed in a custom Valentino Haute Couture piece designed by creative director Alessandro Michele, where she was joined by Golden Globe Award-winning actress Viola Davis, Simone Ashley, Alison Oliver, and others.

Elle Fanning, Cartier’s global ambassador and face of the Grain de Café collection, has worn Valentino to several high-profile events, including the National Board of Review Awards and the 15th Annual Governors Awards. At the Cannes premiere of “The Mastermind,” she continued to captivate the crowd in a custom Valentino Haute Couture gown with a long-sleeved bodice and an elegant plunging neckline that delicately reached to her waist, anchored by a gorgeous brooch.
Elle’s gown included a long tulle skirt with a modest arching train, geometric motifs, and shimmering sequins that covered her entire body, making her look magnificent with every step.
Elle Fanning, the “Super 8” actress, paired her outfit with stunning Le Silla shoes inspired by the Gwen Sandal Collection. The delicate stiletto heels lent an air of elegance, highlighting her attractive stance. With each stride, she emanated confidence and grace, representing the spirit of the Cannes Film Festival.

And, as you know, Elle Fanning frequently accessorizes her red carpet appearances with luxurious Maison Cartier pieces, so her custom Valentino Haute Couture look at “The Mastermind” premiere was no exception.
The actress and fashion icon donned a Cartier Monica Bellucci teardrop pearl diamond necklace for ethereal appeal, a stunning Cartier Destinée collection-inspired emerald-cut diamond solitaire to highlight her elegant necklace, and a Cartier Broderie De Cartier collection-inspired ring to add vintage allure to her ensemble.

Elle Fanning’s appearance at the Cannes premiere of “The Mastermind” was a breathtaking display of elegance, beauty, and grace, all of which were mirrored in her custom Valentino Haute Couture evening gown and gorgeous Maison Cartier accessories.
So, what are your opinions on Elle Fanning’s custom Valentino Haute Couture gown at the “The Mastermind” Cannes premiere? Did she shine? Please leave a comment below and follow Fashonation Bellah Kwamy to see more stunning red carpet fashion moments from her and other celebs.
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