Christian Bale didn’t just gain 42 pounds to play New York con man Irving Rosenfeld in David O. Russell’s ‘American Hustle,’ he also shaved part of his head to give extra life to Rosenfeld’s rather elaborate comb over. Bale even herniated a disc in his back as a result of his decision to give his character a slouched posture, which dropped Bale’s real-life height by three inches.