CANNES, France (AP) — Francis Ford Coppola on Thursday premiered his self-financed opus “Megalopolis” at the Cannes Film Festival, unveiling a wildly ambitious passion project the 85-year-old director has been pondering for decades. Reviews ranged from “a folly of gargantuan proportions” to “the craziest thing I’ve ever seen.” But most assuredly, once again, Coppola had everyone in Cannes talking. No …