I just got a new HD camera and was doing some green-screen work. When editing, I noticed that the green screen did not take up the shot, and so the stuff to the left and right of it were visible. So I used the cropping tool to trim out the stuff outside the green background. But that left a bunch of black space on the sides of my video. Is there a way to "zoom" back in so that all the extra cropped-out black space goes away?

Thanks....obviously still new at this;).

Ken