The scene when Maria and Áron first meet, the girl talks about her grandmother who died because of an infection she got from biting her nails and Áron should stop doing that, too, if he doesn't want to die. Actor Áron Ferenczik had no idea what she said until somebody could translate it to him during a school event where the film was shown in March 2015.

The scene where Áron tries to speak with his mom on the phone, but can't reach her and goes through the whole city and several festivals, etc. was not actually made for the movie. It was supposed to be a short film about a boy who gets orders from his mother like ,,take out the trash", ,,do the dishes", ,,don't forget to eat your dinner", etc. Later during the making of the movie the director decided to use the shots for his first film.

The original title of the movie was ,,Valamilyen furcsa és megmagyarázhatatlan okból kifolyólag", which basically means the same in English. But according to Áron Ferenczik, director Gábor Reisz is obsessed with long titles and the project run with the long name during most of the directing and they only decided to change the title a few months before the release of the film.