Desc: Guidable - A Verdadeira História do Ratos de Porão: Directed by Fernando Rick, Marcelo Appezzato. With Betinho, Boka, Igor Cavalera, Clemente. The uncensored history from the Brazilian band Ratos de Porão, one of the oldest Hardcore bands in the world. Almost three decades of drugs, madness and a lot of noise, told by the people who made and still make part of this institution of heavy rock.