AceShowbiz -

Hollywood celebrities gathered at Hotel du Cap-Eden-Roc in Cap d'Antibes, France Thursday, May 23 for amfAR's 20th annual Cinema Against Aids gala at the Cannes Film Festival. Jessica Chastain was red hot in her one-shoulder gown, Heidi Klum opted for a Bollywood style, and Sharon Stone turned heads with her animal-themed accessories.

Chastain looked stunning in a maroon Saint Laurent by Hedi Slimane gown that she kept it simple with a gold Bulgari serpent bracelet as her accessory. Klum rocked a strapless white-sheer and gold frock by Marchesa, while Stone went with a backless Roberto Cavalli gown a starfish cuff. As she turned around, she revealed a gold serpent with gold chains holding the dress in place.

Mila Jovovich donned a blush Valentino gown with short sleeves, shimmering floral beaded embroidery, a plunging neckline and tiered ruffled skirt. Kylie Minogue also flaunted her cleavage as she opted for a white classic Cavalli gown that featured a plunging neckline, thigh-high slit, embellishments and cut-out details.

Rosie Huntington-Whiteley picked a white ensemble as well, wearing a Christian Dior creme bustier and a skirt with an asymmetrical hemline. Stacy Keibler added color to the event with her deep-purple Zac Posen dress with a bow-accented neckline. Rosario Dawson chose a black Vionnet gown with thigh-high slit and a black woven belt.

Other female guests included Janet Jackson who donned a white pantsuit, Irina Shayk who chose a hot-pink beaded dress, Liberty Ross who paired up an electric-blue long-sleeved top with a short black skirt, and Alessandra Ambrosio who flaunted her assets in a backless Zuhair Murad plunging gown.