Thanks, the second floor looks like it has a higher ceiling clearence than the bottom. I'm guessing most of the higher intensity scenes happen on the second floor where there is more room for the RV to move vertically and larger sets/screens? WOW that structual framing means business. It looks like it could hold the space shuttle... Are there interior support frames as well on the first a second floors?
Edit: I see interior support for the elevator shafts in cruiseships pics, thanks