Stars Fête the Cannes Film Festival

See how Brad Pitt, Angelina Jolie, Salma Hayek, Rachel McAdams and more stars amped up the glamour for the trés chic French film fest

JAMIE LYNN SIGLER

Also at the Calvin Klein Collection event, the actress proves that great fashion doesn't have to cost a fortune by teaming her glam Max Mara olive gown with a $65 Zambos & Siega "Twiggy Snake Clutch."