If it were arranged differently I'd say the tiling suggests a viewing room for a surgical suite or lecture hall. Wasn't there another gallery with a round viewing auditorium that had tiny tiles all over?
I agree this looks like a swimming pool. It could be re-purposed, originally designed as such and then they didn't need it and as it was the basement having been built first it was just adapted to meet needs?
This doesn't look like it was used for movies. There would need to be a projector somewhere (back wall is exit doors) and there isn't much room in front of the first row for a portable and still project an image big enough for the back row to see. Maybe slides or an overhead projector would have worked for lectures in this room.
I am with "BKW", don't forget all those nursing school and radiology graduations. You also have to have a nice place to give presentations to visiting dignitaires. Politicians with medical care facilities in their districts understand, "state and federal funding".
Folks, much of this stuff, is leased they become obsolete, parts no longer available etc. The leasing company simply writes it off, in most cases it never actually belonged to the facility. The blue tubing and humidifier etc should of been biohazard bagged, (red bag), I bet when this place did close down, this patient could of been one of the last transferred out, long term "vent" beds are not easy to come by. Thats really the sad part of this great photo. Mott's thank you for the new galleries.
Or you could just punch the shit out of the beautiful scenery in the photo to the right? How asinine is that to hang a print next to a punching bag? Looks like it isnt in GLASS though, I guess.