Difficulty in finding this film

Does anyone know where or how to find a copy of this film?

I've tried numerous times, but there seems to be no DVD or BR release, it's not on iTunes, and it doesn't seem to be downloadable anywhere. I'm out of avenues.

I'm UK-based and the UK premiere is listed as June 2015 (festival only), which is long gone.

The 'DVD premiere' for Germany is listed at October 29th, so I can only hope that solves the issue, but I've never come across a film that is so elusive, in terms of finding a copy, given that all of the 'release dates' have long passed.