While shooting in Radegund, at the actual house of Jägerstätters, both August Diehl and Valerie Pachner met with the daughters of Franz and Fani - Maria, Rosalia and Aloisa - who still live in the same village where their parents had lived.
Artificial lights only used on rare occasions during shooting. For all the other sets, including the prison cells, the team simply used the right time of the day to shoot it until they lost the light.
A couple of days before the world premiere of the film at the Cannes Film Festival, there was a special screening for the daughters of Jägerstätters at their home. According to Valerie Pachner, the three sisters satisfiedly liked the film.
The story was little known outside St. Radegund, and might never have been discovered, were it not for the research of Gordon Zahn, an American, who visited the village in the 1970s.