If you are going to go up there anyway, why not be imaginative? Yes, white ceilings are too reflective, but why not make it a midnight blue? And then add a little something in the form of GLOW-IN-THE-DARK stars, or even constellations? There are kits sold from the source below, and possibly others if you do a web search.
1) 600 stick-on stars, planets for just $7:
http://www.edmundscientific.com/product.asp_Q_pn_E_3081935
2) A mobile of the nine planets of our solar system for $13; a couple or three of these might enliven your dark blue ceiling, perhaps suspended below the stick-ons above. Just don't put it too near an air outlet, else it might spin itself to death. It shouldn't spin like a whirligig!
http://www.edmundscientific.com/product.asp_Q_pn_E_3082623
You could make the color even more imaginative if you shade from dark blue to lighter blue at the rear, as by painting some panels very dark at the screen, lighter in the next row back, and so on. Our cinemas are too often dull decor anyway, and this is a cheap way to bring back some pizzazz. If you want LOTS of stars, why not buy or make up a stencil and spray paint it with luminous GLOW-IN-THE-DARK paint:
http://www.edmundscientific.com/product.asp_Q_pn_E_3031806
This may be a little more work, but, I would think, a LOT more fun!
And if you really want to duplicate the old "atmospherics" consider using a hidden projector to project 'stars' or 'clouds' upon part of the ciling and connecting it to the main projector switch to start and end with projection. One might even use a MIRROR BALL (out of the way of the projection beam) to add some sparkles, though you would have to experiment with this to make it workable. Such devices are available here and elsewhere.
Check with local wall paper distributors for the GLOW-IN-THE-DARK children's stars and nightime patterns. Maybe just a frame of borders of this could be around the edges of each ceiling panel. Penney's catalog used to sell this.
And if you really want to enliven those bleak acoustic panels, consider pushing BLUE L.E.D. lights through some of them so that they glow whenever the lights turn out. Those by
www.HolidayCreations.com ("ForeverBright") cost $7 retail for a box of 35 and if turned on for 6 hours daily, they cost only 45 cents per month per set. They have a lifetime warranty of 20 years! They are epoxy plastic which means no glass! I have had ten sets of them running 24/7 since Nov. 1st, connected end-to-end, and have had only about three of the lamps fail while the others continue apparently unaffected. This brand of LEDs does not require transformers. Read their patent: 6,461,019 or read more about them at the LED MUSEUM:
www.ledmuseum.org
[This message has been edited by jimor (edited January 06, 2005).]