Marion Cotillard stood beside her handsome costar Matthias Schoenaerts at the press conference and photocall for De Rouille et d'Os (Rust and Bone) at the Cannes Film Festival in Cannes, France, today. Marion actually filmed the movie, which has her playing a whale trainer, nearby in France. We saw Marion stripped down for intense water scenes for the movie back when they shot it last Fall. Cannes is just the first stop on a crazy Summer ahead for Marion as she promotes The Dark Knight Rises. That promotional tour will kick into high gear soon, but for now she's focusing on this project in the glamorous location. Don't miss our updates from the festival, starting with all the pictures from day one of Cannes!