·The filming crew of the film is very large, with as many as 26 main actors, 120 supporting characters and 8,000 extras. In order to draw prisoner tattoos for actors, makeup artists and art directors have designed 700 different patterns.
·Some of the scenes of the film were filmed on the spot in Carandilu Prison. This is the first time in Brazil's history that such a large-scale film crew has been stationed in a working prison. In late 2002, the prison announced its closure. Although this film is not a documentary, it also faithfully records life in prison, which makes it even more meaningful.
This is Babank's third filming of a prison story after "Pixote" and "". He said that he used prison as a metaphor for a situation where there is no escape, the most extreme situation that human beings can live in. In prison, most of man's activities are severely restricted and suppressed, and he has to muster up all his courage to fight for survival. Here, it is not enough to just suffer the punishment, one must fight for life. "This film is about how those who have lost their freedom, while watching their personal space shrink, can establish a new code of conduct that protects their integrity as a collective." He emphasized that it was a fictional film based on real events.
