Does a communal "shutter based 3d" theater exist

[tripletopper]

I know I don't get double exposures on a shutter based 3d, and most of my 3d problems come from double exposures. I dont understand how "circular polar" prevents accidental double exposures?

I can explain how shutter works. I can explain how perpendicular polarizing works. I know how perpendicular polarizing fails, by tilting heads.
I know how shutter 3d fails, by large, unequal ping times between tvs.

I can't tell you if I was in circular or perpendicular polarized theater, but i know whatever polar filter was in place was defeated and had double exposures. Tell me how to cause a circular polar double exposure, and I'll tell you if i was in a circular polar theater or not.

By the way, the lack of shutter based 3d communal theaters in the responses show me that I'm right. That the only reasons theaters don't use polar is because of obscene cost in a communal setting. But that shutter 3d is the technically superior tech, but doesn't scale down cost when group viewed. Exactly like Headphones are for sound.