Just got back from a second viewing and I gotta say, it was much better. I was more than a little disappointed when I left the premiere, mostly with Malekith. He didn't improve on a second watching, but without any expectations for him being a great villain, I think I was able to appreciate the rest more. It's up to a 7 or 7.5/10 for me now.
Oh, and I'm going to be on thehodgepodgepodcast.com
next episode to talk about it.