an Entity references as follows:
Der Bunker is a 2015 German horror-comedy film by Nikias Chryssos, in his feature film directorial debut. The film had its world premiere on 7 February 2015 at the Berlin International Film Festival and was released to DVD, Blu-ray, and VOD, alongside a limited theatrical release, in December of the same year. Filming for Der Bunker took place in an abandoned house in Kleinmachnow and of the film, Chryssos has stated that despite the film's absurd nature it is also a serious film, which he felt was personalized in the characters of Klaus and the Student.