Most of the actors that appear in the movie are villagers without acting experience, from the same region were the actual events happened, except from the judges and doctors; the director did this in order to preserve that idea on how the villagers didn't have any education and were isolated from the society back then.
Released on the same year as Je suis Pierre Rivière (1976), which covers the same events. This version went on to become more successful and won some awards.