Transparent Video live action green screen

hi,

i wanted to have somebody walk onto my interface (live action). I wanted to know what the best way to make the video transparent. It’s shot on green screen. And I know i can break the image sequence apart and just delete the background, but there has got to be another way. The file will eventually be brought into director so size isn’t an issue. Any tips or ideas.

Summary:

I have video (Quicktime)
of a person walking into a frame and talking
i need the video to be transparent so you can see the
interface behind the person. The video is shot on green
screen. I can key out the background in combustion, but that
doesn’t help when I bring it into flash. Image sequence? video?
I’ve seen this done before, what’s the trick?

Thanks for any help!!!

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