Hollywood titan Francis Ford Coppola returned to the Cannes Film Festival on Thursday to unveil his enormously hyped, wildly experimental and deeply divisive "Megalopolis". The 85-year-old director's arrival at the world-famous movie festival -- where decades earlier he twice scooped the top prize Palme d'Or -- has been the frenzied talk on cafe terraces in the swanky Cote d'Azur city. Would the epic $120-million project that he self-funded, and that has been gestating for some 40 years, be another masterpiece emerging from chaos, like "Apocalypse Now" all those decades ago? Or would the film that Coppola sold part of his...