From what I've found I should be able to overlay a transparent background video clip on a background image but I'm not sure if that backround can be another video instead of another image.
Sun, 06/16/2013 - 08:14
Yes, it can be another video. Just use two tracks and composite.
Fri, 06/28/2013 - 20:47
Thanks very much, that's great news cause I got a huge u-tube project lined up!
I'll risk with an addendum, can the chroma-keyed clip be smaller than the background one (I may have painted myself into a corner, but could redo it if necessary).
Also how do i subscribe to get email alerts when someone responds (I almost missed your reply)
Fri, 06/28/2013 - 23:45
"can the chroma-keyed clip be smaller than the background one"
Yes it can. You can combine chroma key and rotoscoping as described here and in the video embeded there