What kind of glasses does the IMAX 3D use? The realD ones looked identical on both of the lenses and the screen looked fuzzy, so there's some kind of magic but it seems to be in making it fuzzy to clear not combining colors or anything. The RealD screen is angled and wider, but not tall like IMAX. Maybe the tall screen is the only difference? (I'm not going to pay $11 to find out ;))
I forgot to mention that supposedly it works best farther back, and the glasses DO fit over your regular glasses (my husband wears glasses).