I'm shooting dancers on a green screen for a music video with an HVX. We have a green screen that is 20 feet wide, 15 feet high, and curves down to the floor and comes out 15 feet. I know the basics of light a green screen, but I've never tried to light one with a floor. The Director I'm working with wants to shoot an over head wide shot seeing the floor and then jibing down to a wide shot at waist level. What are some techniques to lighting green screen and talent for something like this? Someone told me to try diffused space lights for the green screen. Has anyone tried this?