On May 23, 2025, at the 78th Cannes Film Festival, Gillian Anderson graced the red carpet for the premiere of The Mastermind at the Palais des Festivals in Cannes, France. With her unmistakable blend of timeless sophistication and modern allure, she set the tone for the evening. Drawing on her reputation as one of the industry’s most influential style icons, Anderson opted for an impeccably tailored ensemble that balanced classic elegance with a contemporary edge.