One of the creepiest movies I've ever seen. I was afraid to fall asleep for weeks after watching this as a kid because of the scene where the pod takes Nimoy in his sleep.
The pod scene, or the scene from the picture above? If you don't remember anything else, then you should definitely watch it again. My wife and I watched it again a couple years ago, and it still holds up. The pacing is different than modern movies obviously, but it's a great movie if you take the time to get into it.