Walter Cornás, a non-Chilean actor, studied the Chilean accent for his character in this film.
The cheese on the film was made of cardboard except for the pieces that the characters eat.
One week before the release of the film, the director Esteban Rojas decided to change the dubbed voices of some characters (like Pochoclo or Mr. Huachi and other) for the original voices from the actors. Some stay dubbed like Osvaldo Cox and Carmela.
Miguel Barriga, who plays Lorenzo Sáez, has a real band called "Sexual Democracia" and was pretty famous during the 90's in Chile.