Sorry, here is some more info. I have a person holding a picture frame in a scene. Unfortunately, she moves the frame around, through no fault of her own. The frame is cut out as a mask (so I can see behind it). I have done this in Vegas. I put a picture behind the frame so it shows through. But, since the person moves around alot, the mask stays put and looks kind of funny. I need a way of getting the mask to move around the same way the person does. If I can do it in AE and then bring the footage back to Vegas, that would be great.