Beecher Stowe couldn't be more pleased than to find himself spending that delicious season between Thanksgiving and Christmas in the Hamptons. On his first weekend back, East Hampton stages its annual ragtag, irresistibly corny, small-townish Santa Claus parade, complete with a high school band and Santa on a flatbed truck. It's an old-fashioned American village Christmas (even if the elves include Spielberg's kids ). Stowe has even convinced his...