Keira Knightley and filmmaker Joe Wright ("Atonement") team up again to cover a celebrated work of European literature, this time focusing on forbidden love among the Russian aristocracy described by Tolstoy. The latter has directed a gorgeous-looking, if overindulgent, film, although nary a soul is to be found in it. Knightley, as the title character, wallows in her loveless marriage to politician Alexei Karenin (Jude Law). She falls in love