Well - it's been a while since I last posted!
We've now painted the room with Dulux Breton Blue on the side walls and the back wall and ceiling 'shelves' with Dulux Urban Obsession (dark grey).
http://www.flickr.com/photos/73833597@N05/7148009743/image
Starting to paint the walls
My wife persuaded me to go with the star ceiling idea, which proved to be a major headache, as we don't have access to the roof space.
In the end, I bought a large sheet of Foamlux and screwed a light timber frame to the back. Foamlux is a plastic used for making shop displays etc. and is very strong and light. We covered the Foamlux with a large black stage backdrop cloth (glued on) to make it as matt as possible.
http://www.flickr.com/photos/73833597@N05/7001922462/image
http://www.flickr.com/photos/73833597@N05/7001922932/image
Installing the 250 fibre optics took an entire day. I'm pleased with the end result, though.
http://www.flickr.com/photos/73833597@N05/7148011203/image
Star ceiling in place, before the edges of the 'shelves' are finished.
I also made a change to the original plan of having no soundproofing. The sound was quite loud in the downstairs hall, so I decided to buy some acoustic sheeting to put under the carpet. It won't stop the sound completely, but it should help a little.
The stuff I chose was called Tecsound, and it's horrible! Very heavy, somewhat sticky on one side and almost impossible to get it to lie flat. I followed the instructions provided by the seller to install it with the fabric scrim facing down, but I'm not sure that was wise, as I now stick to the floor! Nevertheless, it will be covered with carpet and Cloud 9 underlay very soon.
Here's a photo I took today. It's quite sunny here, so the paint on the walls looks a lot lighter than it does when you're in the room.
http://www.flickr.com/photos/73833597@N05/7148016967/image
It's been over a year since we moved house, and we haven't watched any films in that time, but the end is in sight! Once the carpet fitter has been, the only major jobs remaining are making the screen masking, deciding how best to cover the window (any ideas?!) and making some kind of radiator cover. And installing all the kit, of course.
I'm leaving acoustic treatments and final decision on projector positioning until the end.