This is all over the place. It seems derivative of Harry Bates' short story from 1940 "Farewell to the Master" as an alien - in this case from Venus - arrives to tell humanity to ditch nuclear weapons. Patricia Neal seems to pretty much reprise her role from "The Day The Earth Stood Still" (also based on the same short story) as she and Cyril Luckham try to engage with our alien visitor, played b… see more...