George Washington marks the stunning debut of David Gordon Green, 24, a writer and director of rare grace and feeling. The plot has nothing to do with our bewigged first president. George (Donald Holden) is a thirteen-year-old black boy living in a multiethnic town in North Carolina. He hangs with a handful of friends around a rusted-out railroad station. The film is narrated by Nasia (Candace Evanofski) in a style that evokes the Linda Manz voice-over in Terrence Malick's Days of Heaven. Nasia,