A nifty little monster movie with post-modernist touches that both add and detract from its effectiveness, writer-director Bong Joon-ho’s The Host gets right to the good stuff. After a quick introduction to Gang-du, who works at his family’s food stand (sort of a mini 7-Eleven), and his spunky young daughter Hyun-seo, the movie shifts immediately to a strange sight nearby, drawing a crowd ...