Although Ingmar Bergman (1918-2007) holds an undisputed place in the pantheon of major filmmakers, mention of his name unjustly evokes images of monolithic gloom and despair. All of his pictures, including his comedies, deal seriously with faith, morality, and mortality, but audiences and critics too often neglect the extraordinary wit and vitality that can be found in Wild Strawberries, Scenes from a Marriage, Fanny and Alexander,...