Rosemary's Baby is so much better than I remembered it! I have seen it a number of times, so it wasn't as scary as it might have been. But I remember it being kind of cheesy and camp in a way. This time around it seemed very tight and focused, very uncomfortable throughout, very unsettling.
To me the story really centers on the husband's betrayal of Rosemary. She was annoyingly passive through most of the movie (which was oddly effective), and when she does take action, her desperation is painful to watch. The creepy satanist neighbors were all excellent.
I think it's the very ending which gave me the memory of it being campy -- the satanists surrounding the baby and ranting about the year One. The implication that the baby's hands and feet were cloven. And the Asian man taking pictures like a tourist...
Oh, and the dream/rape scene was intense! Very scary and memorable.