Did I really see this film?! That’s an appropriate afterthought given its hallucinatory quality, a narcotised morphine fever dream about a woman with a flip haircut, boiled wool suits and a voice from the Marilyn playbook. Natalie Portman doesn’t remotely resemble the upperclass journalist who married into the crass Kennedy family and wound up First Lady with her husband’s brains spattered into her lap on an ill-judged trip to Texas, home to LBJ. Yet that doesn’t matter because after a half hour of her narration you are sucked into this Warholesque meditation on fame and public approval. She lies constantly to journalist Theodore H. White (Billy Crudup) interviewing her for Life after the assassination and then tells him things she insists cannot possibly go to print. She will edit the image and control the myth – which she calls Camelot. That record spins as she cascades into a vortex of desperation and disbelief. This will be her version of events. She crashes around the White House, drunk; argues with Bobby and Jack Valenti about the funeral and changes her mind back and forth about how much of Lincoln’s leavetaking should be imitated, while the clodhopping Kennedy sisters try to manipulate the situation; when her husband’s casket is put on public view she sympathises with LBJ that this should be the terrible beginning of his Presidency. One suspects it is precisely the beginning he desired. Real footage of her White House restoration tour for TV is intercut with a grainy impressionistic copy where she is coached and cheered from the sidelines by Nancy Tuckerman (Greta Gerwig). Suddenly Portman’s embodiment doesn’t seem as mad. She retracts all the truthful statements from her account to White – what she did with her husband’s skull, the sound of the bullet – but it is to Father Richard McSorley (John Hurt) that she speaks about her loveless marriage, her insecurities, her need to have her dead children interred with their father. Their burial in the rainy hillside at Arlington feels like the ultimate cruelty. Archive footage is impeccably interwoven with this recreation of events in which we all have an investment, even those of us born long after they occurred. As she leaves the White House for the final time she passes Hamiltons department store and sees rows of window mannequins wearing her wigs and two-piece Chanel imitations. What is real? What is performance? she muses. One gets the distinct impression she knew more than most. And off she goes, homeless, to an unknowable, husbandless future. Written by Noah Oppenheim with a visceral arrest of a soundtrack created by Mica Levi, undercutting the sense of camp that this sad and crazy brilliance otherwise imparts. Andy Warhol is alive and well and still making movies. There is just one word for this: astonishing. Directed by Pablo Larrain. Oh!