There Will Be Blood: 8.5 out of 10.
They should rename this film "The Daniel Day-Lewis Show". It's his movie, in fact, I can't remember a scene without him as the focal point. He's all over this Paul Thomas Anderson flick about a a turn-of-the-century oil prospector and he's brilliant.
I'm not a fan of movies in excess of 2.5 hours because it's so tough with two kids to find an uninterrupted block of quiet time that length, but I didn't want this one to end. If you haven't seen it yet, add it to your queue.