"Sin has a price. You may be sure of that." This comment, which opens the film Anna Karenina, reflects the moral code of author Leo Tolstoy, but only with a hidden twist. Whose sin are we talking about? The lustful wife who cannot control her passion or the prideful husband who cannot control his contempt? Such wisdom that all fall short in the quest to be good and compassionate is much of what makes this sprawling work a classic.