Werner Schünemann is a famous actor in south Brazil. He decided to accept the invitation for such a low budget short film for two reasons: he had never worked in scenes with visual effects before and he had never played a silent character. He also did not ask for any kind of payment because of his personal philosophy of never charging to act in a director's debut film. It was the first film of both directors Ulisses Da Motta and Carlos Porto.
Composer Chico Pereira was along with the crew shooting the making of. He was almost killed by a cow stampede while filming in São José dos Ausentes.
The movie took two years and 8 months from it's first pre-production meeting in 2004 until it's premiere in 2006. Since the film is 15 minutes long, it's like every minute had taken over two months to be made.
The film took a lot of time to be completed due to many issues. It was an all-independent production and there was no money available. Besides, the movie had visual effects scenes and distant locations for the exterior scenes, which required time and preparation. It was also the first movie for the majority of cast and crew.
The script is loosely based on facts. Directors and writers Ulisses Da Motta and Carlos Porto actually had camped at Aparados da Serra in the late 90's. At the occasion, they met two guides who told them the tale of the Gritador.