How To Crop Corners? (Garbage Matte?)

[vision_filmz]

I have some video that I shot that is not centered and I am using it for some graphics work. Problem is I only want to crop the Right Corner and not the whole right side.... SO My question is how can I crop a right corner of a video & only that top right corner?


THanks

[BenB]

Matte in Motion 5.

[NoahK]

There's also this lovely 8-point garbage matte:

http://alex4d.wordpress.com/2011/06/30/free-final-cut-pro-x-effect-mask-8-points-alex4d/

Did I mention it's free?

Noah