zombie84 said:
Has there ever been other footage of the original greedo scene based off 1977 material other than the telecine bootleg and 16mm prints?
Not to my knowledge, the Greedo subs have never showed up in any documentary footage either. The theatrical subtitles for Return of the Jedi should also be on some 16mm prints and is believed to have appeared on an early UK TV-airing in the eighties. Moth3r had it at one point but got rid of it by accident, I think.