Just got back from a screening of the movie made from the video. They used the mix from the Europe '72 box set, so the audio was great (and being mastered by David Glasser, next to whom I got to sit, it was the best concert audio I'd heard in a theater. Absolutely unsquashed, clear and full).
The audio has been out for a while, but the video was a great, if a bit busy with the cuts in parts of it. Great shots of Alembic modified gear, including a bunch of Phil's Starfire. It was really great to see them in the prime of their youth, although Pig was pretty gaunt and pale. Although there are no plans, I really hope it comes out on DVD. I found it to be an even more enjoyable set than Sunshine Daydream, performed 4 months later. The between song banter was pretty cool and it was great to see how much energy they could muster with no audience but the TV crew.
Interesting Phil note: The secret to one of my all-time favorite tones was definitively revealed. He played with his fingers. Bertha, Sugaree, and maybe some more. It's that same tone that's all over the Wharf Rat, etc., from the Skull and Roses album.
Compared to later GD, their listening back then was almost louder than the music. I really hope this gets released.