I also have a new version of the '81 Crawl. I spent a few days working with the 35mm version and even managed to bring back the original stars from the print:
No trickery here, this is 100% 35mm, and just from the one source. I have about 3 hours of screen capture that I took while working on it which I am editing down to something more watchable and which will reveal how it was done… Stay tuned…