I think the 3D glasses will fit over regular glass - they're sort of the 1950's big black frame glasses. If you saw "Up" or anything from the 1950's or 1960's with a scientist in it - those are the type of glasses. I just saved mine from "Up" and tucked them in my purse. Figured I'd need them again.

Just back from the movie. I had the three options - IMAX, 3D, or regular. I didn't realize that IMAX was 3D. If I see it again in the theater, I'll see it there. I chose the 3D option, and skipped my normal popcorn and soda. Thoroughly enjoyed it. My brain got fooled on the 3D with the bugs and the ash - both I swear were closer than on the screen. Really cool graphics!