In this quick, intermediate-level course you'll learn how to composite a device screen into a scene.  I will teach you how to motion track your footage in Mocha inside of After Effects, and I will give some tips along the way to ensure you get a solid track.  Then we will hop over to After Effects where I will show you how to apply your track to a pre-composed layer, animate your assets, and composite your scene using green screen chroma key and the rotobrush tool.