The year 1973 began and ended with cries of pain. It began with Ingmar Bergman’s “Cries and Whispers,” and it closed with William Friedkin’s “The Exorcist.” Both films are about the weather of the human soul, and no two films could be more different. Yet each in its own way forces us to look inside, to experience horror, to confront the reality of human suffering. The Bergman film is a humanist classic. The Friedkin film is an exploitation of the most fearsome resources of the cinema. That does not make it evil, but it does not make it noble, either.