Year Zero
Starring Dion Agius, Kaily Beals, Katherine Berry, Taj Burrow, Marion Dussarrat, Tessa Hemnes, CJ Hobgood, Damien Hobgood, Shannon Lewis, Yadin Nicol
It's a documentary and music movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Austria.