Also, you may want to edit the title of this thread to clarify that it's about the Bava film and not the band. My initial impression was that this going to be a thread discussing some good/rare live footage of the band perhaps.
I'm surprised that more Bava fans haven't weighed in here- this revelation is somewhat mindblowing. Maybe they're not fans of the band and are passing up checking this thread out. I'm a huge fan of the English language AIP version which I saw on TV as a kid and prefer it to the Italian version available on DVD.