The subject of A Dangerous Method, the relationship between Carl Jung and Sigmund Freud, is too great and too interesting to compress under two hours, and it especially doesn’t deserve to have the Sabina Spielrein romance as the center-weight. The need to squeeze in so much exposition and to doll it out in scientific jargon covers a lot of the humanity in a story where humanity is the entire theme. Keira Knightley’s acting range is impressive but far too exaggerated. Though a disappointment, a great concept and director in David Cronenberg save it.