The 35-year-old actress was joined by Madagascar 3 cast members Chris Rock, Ben Stiller, David Schwimmer, and Jada Pinkett Smith at the gala dinner.
The all-star Haiti fundraiser benefited three celebrity-led charities, Sean Penn’s J/P Haitian Relief Organization, filmmaker Paul Haggis’s Artists for Peace and Justice, and model Petra Nemcova’s Happy Hearts Fund.
The Cannes Film Festival hosted the Haiti gala to honor Sean Penn's recent acceptance of the Peace Prize Award and revive awareness on the devastation that hit Haiti back in 2010. The event raised over $1 million that will benefit all three organizations, which work to support rebuilding Haiti.
More photos of Jessica Chastain and the cast of Madagascar 3 at the fundraiser after the jump!