HAUTE VICTOIRE: Having flirted with other designers during the week, Kirsten Dunst chose Chanel haute couture to collect the Cannes Film Festival award for best actress for her role in “Melancholia.” Her hair pulled into a simple high ponytail, Dunst wore a bustier dress with a silver embroidered bodice and a tufted ivory skirt, paired with white gold and diamond “La Pluie” earrings and a white gold, diamond and black diamond “Cascade de Diamants” ring. Her win came despite a ban on the film’s director, Lars Von Trier, after he joked at a press conference that he sympathized with the Nazis and Adolf Hitler — to the obvious dismay of his cast. Starring opposite Charlotte Gainsbourg, Dunst plays Justine, a bride suffering from profound depression as a planet named Melancholia hurtles toward Earth, threatening the end of the world. “Wow, what a week it’s been!” the actress said on collecting her award. “Thank you to the Cannes Film Festival for allowing the film to still be in competition, and I want to thank Lars for giving me the opportunity to be so brave in the film.” Earlier in the week, Dunst wore a saffron Chloé chiffon dress for the “Melancholia” photo call and press conference, and a green and black polka dot mermaid dress by Rodarte for the red carpet premiere. On Thursday night, she donned Chanel for the annual amfAR Cinema Against AIDS gala, where she sat at Karl Lagerfeld’s table with Uma Thurman. A member of this year’s Cannes jury, Thurman was mistakenly introduced as Dunst as she took to the amfAR stage, but the “Kill Bill” star made clear there were no hard feelings. “How much do I wish I was Kirsten Dunst tonight, who gave a wonderful performance in this festival?” she joked.