Simply doing aerobic exercise such as walking or light treadmill workouts will not be adequate to preserve muscle tone, bone health, balance and posture.

FORBES: Why Strength Training May Help You Live Longer

Because her base is in France, and "will ever be, " Cotillard manages to balance Hollywood blockbusters with quieter French films, like the forthcoming Rust and Bone, directed by Jacques Audiard ("he sculpts life in the shape of movies") and Little White Lies, helmed by Canet.

WSJ: Marion Cotillard's Sultry Side