Natalie Portman in Black Swan is extraordinary. The rest of the cast are flawless too including the protagonist Vincent Cassel of Irreversible; another great movie. I've had this post in drafts for some time so I I don't feel like writing too much about it except to say I enjoyed that I found Natalie Portman's character annoying about half way and started to root for her to fall apart. I know that sounds bizarre but I like the change of emphasis from rooting for her in the first half to wishing her downfall on in the second half. She's still an extraordinary actor and one of the finest female artists of her generation. I'm impressed and her ballet skill was not negligible in this film. She excelled.