Edge curvature
 

I'm placing some mov footage inside a shopping mall tv screen that I shot yesterday. I figured out how to do it easily enough motion/distort etc.. and I can even keyframe the softness of the edges, however...

The footage was taken on a GoPro on a lens setting which is almost fish eye, so there is a slight curvature on the frame of the real mall screen.

It's very subtle but I want this to be flawless, so is there anything I can do?

I'm using FCP7.

Re: Edge curvature
 

Seems to be no solution to this one, okay what about rounding of corners - is there any technique for that?