Availability

For those who are looking this is called Maidenquest at Something Weird video and comes with a lot of trailers.

This epic of cinema history is currently best found under the original title.
"Siegfried und das sagenhafte Liebesleben der Nibelungen"
= Siegfried and the legendary love life of the Nibelungs

The title actually says it all...soft porn nonsense. ☺
And while most viewers lust after Sybil Danning, I prefer Raimund Harmstorf.

Raimund Harmstorf was really great as Captain Wolf Larsen in Jack London's Sea-Wolf. 🐺​
https://www.youtube.com/watch?v=UHE3lv72nYY
Unfortunately he commited suicide at the age of 58.
https://en.wikipedia.org/wiki/Raimund_Harmstorf#Death