(Originally published March 2007)
The drywall is up. My contractor's crew did that job, too much for me! There are two layers of drywall, 1/2 inch over 5/8 inch. Each thickness absorbs different frequencies of sound, again reducing the transfer of sound from the theater to the surrounding rooms. In between the two layers is an adhesive product called Green Glue. It form's another layer of acoustic isolation.
I don't have any pictures to post of the drywall installation but it was pretty much as in any other room, except for the two layers.