This one’s kind of a stretch as far as SW is concerned, but there is a short ROTJ segment and a bit if ESB scattered here and there, and it does showcase a lot of the techniques used in the OT so I figured I’d post it here anyway.
Thanks to darth-gary for sending me the link to this video.
Special Effects - 1984 documentary on SFX
https://www.youtube.com/watch?v=hp1Y_kVL6a0 - from the Cinema Garmonbozia YouTube channel (53 mins long)Skip to 21:15 for the segment on the use of steadicams on the ROTJ speeder chase scene, and at 34:10 they discuss sound effects and foley, briefly using ESB as an example.
I couldn’t find any other info about this documentary, not even an IMDB page, so if you know anything else about this, please let me know and I’ll update this post.
Magnificent find!