Neither! Kings Dominion here in Virginia!
I remember the projection quality wasn't good - it was a little blurry and messy, and I figured that was what prompted my nausea.
I'd seen IMAX travelogue films like the venerable "To Fly" at the Smithsonian and never had a problem.
My motion...
"Speed 2" made me sick - literally. I got nausea from the camerawork!
That might be the first movie I can remember where I became impacted by motion sickness - or at least the 1st standard feature film.
I remember seeing a travelogue documentary on an IMAX-like screen circa late 80s that made...