David Cronenberg, a filmmaker with a peerless grasp on the mysteries of the mind and the body, turns his attention to a seminal chapter in the founding of psychoanalysis. Adapted from Christopher Hampton’s play A Talking Cure, A Dangerous Method charts the relationship between Sigmund Freud (Viggo Mortensen) and his protégé turned dissenter Carl Jung (Michael Fassbender), as it was shaped by the case of Sabina Spielrein (Keira Knightley), a young Russian Jewish patient of Jung’s. Cronenberg brilliantly dramatizes not just the rivalry and rupture between two pioneers who defined a field but also the birth of their groundbreaking theories of the unconscious and the forces of Eros and Thanatos. Featuring an electrifying trio of lead actors, who turn near-mythic figures into flesh and blood, this is a film of tremendous vigor and ambition, a historical drama that brings ideas to life. A Sony Pictures Classics release.