Let me preface this with the note that I wear glasses and am mostly blind (uncorrectable vision problems) in one eye. It already causes problems with depth perception, so I wasn't sure how that would affect my experience with 3D movies.

I wanted to see Thor, but my favorite theater was only showing it in 3D. Other theaters in the area had it in 2D, but not at the times I was available, so I figured I could try it out. I didn't experience any headache or nausea symptoms like I heard from others, but I did notice that the movie was a bit darker than I had expected. This was confirmed when I later watched the 2D version at home.

There was also a white haze over the entire film, and after experimenting a bit, I realized that it was due to my bad eye. I could have watched it with a better picture in 2D with one eye closed without too much difficulty. My main problem was that the 3D glasses didn't fit over my glasses very well and I had to keep adjusting them. Very annoying.

Overall, the 3D didn't really bother me, but it didn't look good, either. I don't plan on watching any other movies in 3D unless I have no other choice (it's not showing in 2D anywhere and I don't want to wait until it gets to DVD).