John Coster"Havana is . . . the fantasy of Americans": Filmmaker on capturing the "utopia" of Cuba in new docverified_publisherSalon - Gary M. Kramer"Epicentro," director Hubert Sauper's ("We Come as Friends") fascinating, observational documentary about Cuba, opens with a man smoking a cigar the country is famous for. Yet the filmmaker, who was Oscar-nominated for "Darwin's Nightmare," is more interested in diving deeper into how people on …