Filmmaker Eric Metzgar found himself captivated by one of those TV news human-interest segments about a quirky guy who had let turtles take over his New York City apartment. Was there more to this story? After two years of immersive journalism, Metzgar produced this startlingly accomplished film, telling the story of a driven man, Richard Ogust, who is dedicated to saving the world's endangered turtle populations. Ogust is, in effect, building an ark, and as he races against time, the palpable tension mounts. Through perceptive camera work and a musician's mastery of rhythmic editing, Metzgar has fashioned a bracing parable about our own fragile foothold on the planet. (PS)On Sunday at 9:30am, join Metzgar and composer Eric Liebman for "Cuts + Beats: Composing a Doc." A free master class.