This is a somber and unremarkable art film from Coppola’s late sixties period. A woman in her thirties living on Long Island, played by Shirley Knight, feels the need to leave and sets off west in her station wagon. Her destination isn't clear, but along the way she picks up an ex-football player, James Caan, before encountering a motorcycle cop portrayed by Robert Duvall. "The Rain People," released in 1969, p…