Before my teams started their first week at NNHS, I went there to do some test video runs with our large collapsible screen that we were going to use for our "outside screen content".
My new tech coach, Bobby Herrera looked around at the stage and said "Forget that screen we have to set up every week. Let's just project on THAT!" (and he pointed to the 180 degrees white scrim curtain that hangs at the back of the stage, called a "cyclorama" or "cyc" for short that the theater manager lights in different colors for enviornment.)
ALWAYS LISTEN TO YOUR VOLUNTEERS!
After 4 weeks of using the collapsible screen and some flat screen TVs, we gave it a try. The projector we have is lame and can not "keystone", so it actually started on the right side of the stage and then expanded to a much larger size by the time it reached the other side of the stage. (You can see video of that week here. ( http://www.youtube.com/watch?v=0NPH25pLMW8&eurl=http://billcarroll.typepad.com/multisite_arts/)
Look at the back screen, not the one above.
Well that worked well, but then Bobby said, "If we only had another projector, we could project from both sides, greatly reduce the keystoning problem and cover the entire screen."
So I found another projector sitting around and we tried it this weekend. I LOVE IT! We are actually shooting the images in "mirror" so the movement always travels toward the center, instead of the same thing, in the same direction and covers about 50 solid feet. That means we can't use anything with words on it, but it looked fantastic! The hard part is the two projectors we are using are both old and lame, so the color matching between projectors is bad. So if anyone has $15,000 I can use to buy two decent, matching projectors, that would be awesome!