I watched this film last night on Netflix for the first time, not knowing anything about it. And WOW, this film made me care and scared for the character Rosemary so much. I greatly felt my heart beating fast towards the second half. When it ended I felt physically ill. My stomach was shaking, and my head was all over the place thinking about it and contemplating on the ending. A film hasn't made me feel like this for a long while, and considering this came out over 50 years ago, is an incredible achievement. Great acting by the cast, especially Mia Farrow, a strong lead that is believable, that you care and rooting for until the very end. I'm still thinking about the ending, and how i feel about it but, without a doubt this is one of the best horror films I've seen and I can't believe I haven't heard it being brought up before.