Renowned painter Szüts Miklós and his family's true story served as the inspiration for the film - Miklós was barely 6 when it all happened, he is the little boy in the movie.
The movie premiered on November 27th at the 2019 International Film Festival of India in Goa.
The street where the events take place is fictional. There is no "Sziget utca" (Island Street) in Budapest. However, the other two addresses that briefly appear at the end of the movie, "Damjanich utca 36", and "Sashalom, Attila utca 8." are real.