SMOKE SIGNALS This movie has all the necessary ingredients of a classic road movie, the long trip that turns into as much of a philosophical journey as a physical one, the oddball characters encountered along the way, and the everything-will-be-alright ending. But the foundation of Smoke Signals is the central figures of Victor Joseph and Thomas Builds-the-Fire, two natives of the Coeur d'Alene Reservation in Idaho. I would not say that Victor and Thomas are exactly friends, but they have known each other since childhood and they share a link. At a drunken Fourth of July celebration in 1976, Arnold