V1- I have a clip.
V2- I have a clip.
V3- I want to make a zooming circle track matte from 0-off the screen (like a camera shutter opening, like an old movie opening).
So that the image inside V2 will show through the V3 circle, with the surrounding image to be from V1, which will gradually be "eaten up" by the ever-expanding circle that will contain the image from V2.
I know that this is an easy effect, and I've managed only to frustrate myself with Premiere Pro. Will someone please help me or point me in the right direction? thank you.