“Cold War” is a near-perfect film, an artfully crafted, flawlessly acted meditation on love, memory and invented history that’s both deeply personal and politically attuned. Written and directed by Pawel Pawlikowski, who has drawn on his own parents’ relationship for inspiration, this ode to erotic desire and sociological fate shimmers with a captivating, sensuous beauty that begins with two preternaturally charismatic lead actors and gains force with a visual and sound design every bit as sensual and alluring as the film’s magnetic human elements.