[sanddrag]

For greenscreening, one technique I've used is this special grey cloth (I forget what it's called) made just for this that hangs behind the actors/objects. Then a ring of 50 or so super bright green LEDs goes around the camera lense and points at whatever you are shooting with the camera. On the camera, this fabric reflects back green and shows up PERFECTLY EVEN with no shadows or anything, and the people don't look green at all. It actually gives them nice color. The only thing is it is kind of hard for the actors to stare into this ring of really bright LEDs around the camera lense.