Recently I did a little blue screen shoot with my visual effects students over at CSUN. We did 4 set-ups in 4 hours which I think is pretty amazing. We picked blue screen over green screen for this particular shot due to the fact that we were lighting the screen with Kino Flo K55 tubes which are rated at 5500 degrees Kelvin. This color temperature combined with the blue screen provided a well saturated blue screen.
This type of shot requires a heavy dose of keying, rotoscoping, motion tracking & color correction. These techniques are the bread and butter for all visual effects artists and this one shot will use them all.
The really fun part of the shoot was hand holding a fully extended monopod thirty feet in the air while connected to a new $4,000 camera. Priceless.