It's nice to see that the reviews and fan reaction to THOR have been almost universally positive.
I don't know that many people expected the movie to be as good as it apparently is (and I won't be able to catch it until next weekend). Hopefully it does well at the box office. Iron Man was a surprise hit (well, a surprise to some, anyway), and it would nice to see THOR do the same thing.
If Captain America is really good as well then Marvel's really got something going.