clearly, it's a 50's movie. Positive but I think + Good story + The message (much clearer than the remake) + No love relationship or sex (sorry but that is annoying because now in almost every film, regardless of the Story) + The selfish and stupid people will not retrospectively excuse (Remake) + The human main character is a woman and yelling until almost the end (for the time!) (50s - women without screech probably did not)
negative: belief in the integrity of scientists, today we know that's nothing to buy as cheap as a scientist - the timekeeping