This movie blew me away from the sheer intensity of Aronofsky's directing & Natalie's performance. It was one of those movies where you catch your breath when it's over. The "horror" elements of the movie were also really freaky & disturbing! Even if the horror elements were mostly hallucinations, they were still scary! I mean moments like the paintings in her mom's room, when she sunk underwater in the bathtub, the "leg break", etc. Even something like the scene where she was uh, "touching herself" was scary when we suddenly see who else is in the room. That mom creeped me out the second she showed up in the movie and never stopped creeping me out!
I have to admit the nervous energy in Natalie's character got kinda tiresome after a while and I wanted to see the "black swan" come out earlier, but I guess that was delayed on purpose to make the climax stand out even more.