02: The sensitive film-director Ula Stöckl has turned the 7 page literary sketch into a tightly packed film of 50 minutes. Emotional monologues enrich the spartan material. Ula Stöckl's version features Patrick's parents, who are only briefly mentioned in the original version. Thus she avoids the cliché of the evil adults: it is not sadism which causes the problems but rather basic thoughtlessness. Away from simple description of setting, the occurrence of what is basically criminal behavior and the transformation from tortured to torturer is highlighted. The ruined family becomes a breeding ground for crime. "Popp and Mingel" is on the way to being a psychological detective story, but it avoids all of the run-of-the-mill effects.
Claus Croissant, Münchner Merkur, 11.07.1975
03: Despite the fear that "Popp and Mingel" would be just another overly sentimental film about whinging latchkey kids, this desperate flight of one lonely child into its imagination has inadvertently become one of the most beautiful and moving films dealing with social psychology. Ula Stöckl manages to portray the yearning daydream paradise of a child in need of love extremely sensitively. A child who turns the shabby remains of a doll and a balloon into father and mother. Part of her success can undoubtedly be credited to her gentle direction of the 8-year-old Patrick. A film, which deals with real "spiritual terror" - silently and often sinisterly.
Ponkie, Münchner Abendzeitung, 11.07.1975