When I was a kid I watched the 1953 movie "Invaders from Mars" and it scared the bejeezus out of me! The drill which implanted a controlling device in the back of your neck? And that alien in the glass globe? Yikes.
This movie "burned a hole in my brain" when I was about ten years old, and I've never recovered. It just goes to show that even a B-movie script can be turned into a masterpiece in the hands of a good director like William Cameron Menzies.