I am trying to do a phone screen replacement in after effects. The phone screen has a green screen and I was able to track the movement of the phone and insert in the video game animation that I had made. My problem is that a lot of the image behind the phone is green and when I applied the keylight it took the green out of my whole image not just the green screen as well as making the parts of the footage that are not green more noisey. I have tried using masks to mask just the green screened phone but then the whole rest of the image is just blacked out. Ive watched different tutorials to try and use the inside and outside mask functions in keylight but I havent been able to fix the problem.
Currently I am working with two layers: the main image with the green screened phone and the layer with the animation that I made.
If anyone has any advice that would be helpful it would be very appreciated.