i did a cut of the asteroid battle in AOTC, http://www.youtube.com/watch?v=VASUJhw-qOc&feature=channel_page, using a very quick cut from luke in an xwing from ANH of him presing a button to show obi wan pressing a button in his fighter.
it was more to experiment with the flow of the scene, because if it wasnt objectionable, then perhaps we could slip in filmed elements of our own, of hands doing stuff to illustrate things.