After Effects Tutorial: Combining Two Handheld Shots

I posted a short After Effects tutorial on TekSocial a while back on how to do some basic motion tracking, and some people asked for some more advanced tutorials.

So I went about creating a more advanced tutorial on combining two handheld shots into one seamless clip. This tutorial uses After Effects to stabilize both clips, mask them together and then adds handheld camera movement to the final shot. I have been using many of these kind of shots for some of my short films since we don't have many actors, so I duplicate them.