I'm on a time crunch and my knowledge of both After Effects and Premiere are very beginner level. I'm an app promo video and using mostly stock. I purchased this piece of footage from Getty (http://www.gettyimages.com/license/477621153) but I cannot figure out how to combine the green screen parts with the corresponding ones without. I know it's probably simple but I'm stumped. Thanks for any help I can get!
You would use a combination of Mocha to track the moving & opening screens, keying on blue to insert your own images. Then you would nest that comp in another one, keying on green to put your own background in the shot.
Keylight should do an excellent job of removing the blue and the green.
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA