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!