 According to an TV interview to Osvaldo Bayer, writer of the novel  in which this movie is based, in order to film a scene with a  workers protest, the director asked the Santa Cruz governor Jorge  Cepernic for extras. The governor then asked the Juventud Peronista  (Peronist Youth) to take part. Among those people was Néstor  Kirchner, who is now, in 2005, the President of Argentina.