A peculiar fugue for both a nation in mourning and for a woman having a near out-of-body crisis to preserve the legacy of her slain husband, Pablo Larrain’s Jackie (B+) is a film that moves in mysterious ways. In the central role of Jacqueline Kennedy played out in the aftermath of JFK’s assassination, in flashbacks to an awkward White House tour and in a guarded interview framing device, Natalie Portman is perfection. The actress conveys urgency and dignity in her rigorous pursuit to control the narrative, preserve the majesty of the POTUS office and bottle the enduring notion of “Camelot.” All the while she internalizes her grief and personal needs in a complex performance of considerable modulation. Portman’s Jackie is keenly aware of history and that all eyes are on her. It’s a wondrous lead performance wrapped in how’d-they-do-that historical reenactments. Overall the film is an artsy, absorbing character study that gets richer as it reaches final act crescendos. Lorrain surrounds his solid lead actress with superb period detail, lush costuming and natural supporting players including Greta Gerwig as loyal assistant Nancy, Peter Sarsgaard as Bobby Kennedy and John Hurt as an otherworldly priest. Ultimately it’s all about that classic American tenet of meeting the moment when challenges arrive that are bigger than ourselves.