Inocent Blood is an unbelievably lethargic horror comedy directed by John Landis (An American Werewolf in London). Anne Parillaud, the French star of La Femme Nikita, is less sexy than morose in the role of a modern-day vampire who preys on mafiosi. Why mafiosi? For no good reason other than that it allows Landis to stage a lot of scenes in which cut-rate Italian hoodlums stand around yelling at each other. F