the day the earth stood still

An alien and a robot land on Earth after World War II and tell mankind to be peaceful or face destruction.

giant robot ꞏ humanity ꞏ peace ꞏ military ꞏ Thriller ꞏ ufo ꞏ social commentary ꞏ physics professor ꞏ spacecraft ꞏ remote control ꞏ alien technology ꞏ flying saucer ꞏ science fiction ꞏ black and white