Nordic Noir crime novels are not alone in being dark and brooding. Scandinavian films are equally so. Danish director Nicolas Winding Refn's latest movie, set in the Middle Ages, is ominous and violent. It's called "Valhalla Rising" and tells the story of a mute slave warrior named One-Eye who joins a group of Christian Vikings on a sea voyage who end up in the New World. Anne Strainchamps talks with Refn about his movie.