At one point in The Black Dahlia, the three leads - Josh Hartnett and Aaron Eckhart as hotshot detective pals in the L.A.P.D., and Scarlett Johansson as the woman they love - watch an improbable revival of Paul Leni's The Man Who Laughs, a mad silent-movie masterpiece. Adapted from Victor Hugo's novel, it derives a tingling romantic-masochistic allure from a man with a smile carved as punishment into his face. It's daring for director Brian De Palma to inject this movie into a pop entertainment; The Man Who Laughs, however great it is, remains a factor in mass culture only because Batman creator Bob Kane based the Joker on this woeful laughing man.


