I liked Thor. It was as good a visual adaptation of the crazy Kirby shit as anybody could hope for, the writing was good, and they made good compromises between mythology and story, which is prudent - there's just too much mythology for them to have actually kept it all. No prophecy, no mention of Ragnarok, and a fairly limited cast of Asgardians; a few nice bits if you know what to look for (Sleipnir makes a cameo); and good writing. The only point which I have actual objections to is the fairly explicit implication that Odin lost his eye in battle with the frost giants.
It did not work in 3d very well at all; the insane color palette of the cosmic scenes just don't agree with the glasses. I'll see it again in 2d next week, and I suspect it will look a lot better that way.
I also like how they worked Donald Blake in. Very cute.
The credit candy was disappointing, though - [spoiler]I didn't know what the Cosmic Cube was until just now, and there's no apparent link between it and anything else, although apparently it's the source of the Red Skull's world domination plans in Captain America (hence Fury's mention about history?)[/spoiler]
THAD EDIT: Tagged for spoilers. Dude, seriously? The movie came out TODAY. You are literally describing the LAST SCENE IN IT. You should not have to be told that is not okay. Fuck you.