Quentin Tarantino has said he's got one movie left in him before he retires. The US director also had the bandwidth for a novel based on his most recent film, "Once Upon a Time... in Hollywood." The 58-year-old filmmaker's "Once Upon a Time in Hollywood" novel, which came out Tuesday, is a best-seller already - in the micro-niche known as Amazon's Movie Tie-In Fiction Bestsellers, Kindle Edition. It's no Oscar, but it's something. "The novel is loose-jointed," a New York Times review said. "If it were written better, it'd be written worse. It's a mass-market paperback that reeks of mass-market...