So- Black Swan...
good, but not great for me.
I felt like the story line wasn't terribly original or interesting (life immitating art... ok, I get it) and there were a couple things that really bothered me- like, distractingly bothered me: the flappy arm choreography that kept going on and on and on throughout the entire movie (alright, it's Swan Lake, but give it a rest already) and sound editing, particularly around Portman's breathing- too much.
Still... this is a very, very worthwhile movie- beautifully shot and conceived, fairly well acted, and I genuinely appreciate the ambiguity in the ending (at least, to me it's ambiguous- maybe it's clear to everybody else?). I really liked Cassell in this too.