Video as backbuf?

I am curious to know if there is a way of adding a avi file, to the backbuf of Blender. :-?

Is there a Python script of something that allows you to do this?

Because if there is then Blender could be used to make special effects etc for videos.

Does anyone know of a way to do this?

<forgive me if this question has already been asked. :wink: >

bah, of course you can

[and the term is called rotoscoping]

bah, and a quick search found: