Reminds me of the Flaming Lips stage show where they a huge amount of flexible, LED strips as a backdrop going through all kinds of animations as the show progresses.
I built one of these to get more experience with FadeCandy (a small board that will drive 8 x 64 neopixels).
I ended up building a 64x64 (4096 or 4K) display that did 30FPS, you could drive it with all sorts of different things including scraping screen pixels or sending a webcam output to it.
It consumed a bunch of power (500W) and was a bit clunky but a friend rebuilt it and I think it made it to burning man this year (and came back too dusty to use).
