@jonno We realize that other people have already done what we’re trying to do, yes. We actually watched the Earl Twirss version quite a bit during our work on this trailer, which helped us figure out what footage could be replaced (a.k.a. what was in the final movie) and what couldn’t. For lack of a better explanation, we’re restoring these trailers for the challenge of creating a better and more accurate final product. Even if we can’t get them 100% perfect, we hope to build a stronger foundation so other fans can possibly use parts of our videos in their future restorations.

@Ronster “But the only missing footage here is the extended R2-D2 on tippy toes as Kershner put it.”
The Vivaldi ESB trailer has got to be one of my personal favorites! We’re working on a test version currently. Which footage are you referring to here that’s missing? If you mean the one of R2-D2 outside Yoda’s hut peeking through the window, it seems that footage is present, frame for frame, in the final movie (I might be interpreting you wrong here, please let me know if I am!)