the problem with Thor is that you never care what's going on. all the fight scenes end before they even get started, and all the while you're sitting there wondering why you care. Corny and pointless love story, corny acting, lame fight scenes, yeah it's not that great. what's more upsetting is two of the preivews on before Thor, Green Lantern and Captain America, look like the same pointless crap.
I remember a few years back when super hero/comic book movies were good and worth getting excited over.