I joined later than 2006 as well, but of course I might have downloaded the video without being a forum member. With the present forum software it would be a bit difficult to find the source here anyway.
Getting the name of an actress is nowadays not so cumbersome as it used to be 5 years ago. The Yandex reverse image search is much better than Google's, and by using the "Similar images" feature (sometimes more than once) even certain seemingly hopeless cases can be solved.
I am not sure what you mean by slow motion. Seems fine to me.
I suspect now that the version I uploaded came from the original unknown movie, not the "Nass Wer Hier Lickt, der Ertinkt" which seem to be a compilation video with a shorter version.
Spike
Edit: Now that I look back through the clip properly, I agree with hirbod4 that a large proportion is in slow motion, although the scenes with real audio (not just music) are normal rate. The soundtrack is consistent rate throughout, so the slow motion is done for artistic purposes. I quite like the effect, which is probably why I hadn't noticed it before.
-- Edited by spike on Saturday 11th of July 2020 08:03:15 AM