This eccentric children’s fantasy from South Korean writer-director Bong Joon-ho (Snowpiercer, The Host) premiered on Netflix, to the consternation of art-house moviegoers, so this limited theatrical engagement represents a rare chance to consider its grand scale. Tilda Swinton, an exceptionally cultured woman with a documented weakness for donning fake teeth, stars as the heartless CEO of an agrochemical corporation that genetically engineers 26 “superpigs” and places them with farmers around the globe as part of a goodwill campaign. Ten years later the company comes back to collect the giant pigs (which look more like rhinoceroses with their rounded snouts and gray, leathery skin), and a South Korean farm girl, played by Ahn Seo-hyun, must rescue her beloved pet, Okja, from the slaughterhouse. (In a haunting scene near the end, superpigs low piteously in their stockyard as they’re dragged one by one up a ramp to the rendering plant). With Paul Dano, Jake Gyllenhaal, Giancarlo Esposito, and Shirley Henderson.