‘Objet a’ Review: Ann Oren’s Wickedly Kinky Curiosity Eroticizes Everything From Mushrooms to Mushroom Cuts

“Objet a” was Lacan’s term for the lack, the absence, that sets our desires into motion; an object-cause rather than a physical object. If it were the latter, a more apt title for Ann Oren’s delicious new film would be “Object A to Z,” given the impressively vast range of things — everyday and obscure,…