Just finished Thor. Like Iron Man 2, it wasn't as bad as I remembered.
This movie actually reminds me a lot of Wonder Woman, which isn't that surprising since Wonder Woman is essentially Thor + Captain America. It's similar to WW in that the first 30 minutes are underwhelming, the last 30 minutes are underwhelming but the middle hour is solid (if predictable). There's a lot of posturing and pageantry on Asgard in the beginning and end, which feels like overproduced dinner theater. But the midsection of the movie delivers: funny fish out of water humor, nice supporting performances from Gregg and Skarsgard, and a surprisingly fleshed-out and effective character arc for Thor. There are actually a lot of nice character moments on Earth: Thor and Selvig drinking boilermakers; Thor mapping out the cosmos for Jane; Thor hitting rock bottom, and apologizing to his brother and accepting his exile.
The bad stuff: some clumsy special effects and overlong fight sequences; thin characterization overall; and, again, pretty much everything on Asgard and Jotunheim.
This is between a 4 and a 5, just like Iron Man 2. Where I was generous with Iron Man 2, I think I'll be stingy with Thor.
Final score: 4/10