Nothing is more purely reactionary than vengeance. Forgiveness, on the other hand, is the only reaction that is also a new action; it makes an end so that it can make a beginning. If vengeance lives only in the past, replaying the original offense on an endless and obsessive loop in the manner of Groundhog Day, forgiveness has the uncanny ability of effecting a genuine and surprising scene-change. The director’s “Cut!” is not a call for violence, but rather an opportunity for a second act. So, too, is forgiveness.