Sam Waterston in a zombie movie? Though it's dressed up as a meditation on genetic engineering, Warning Sign is still just a zombie movie, sans the death. In this film, the guys just go to sleep before they become bloodthirsty monsters. And this zombification is curable: So the body count is awfully low. Still, Warning Sign has a pedigreed cast and a few fun moments (Kathleen Quinlan getting electrocuted by a mild-mannered scientist who just wants out of the research facility. Reasonably interesting for its era.