Natalie portman peaked with this movie, a psychological horror focusing on perfectionism and obsessing over being perfect. The whole plot is basically about realising your best, isn't the best. And how natalie face this realisation, is the horrifying part of this movie. She destroys her own mentality to become her higher self, just to feel almost perfect. The lesson you'll get from Black Swan is to accept who you are and stop pushing yourself just to meet someone elses standards. That's why i think people should watch it.