Sábado de mierda ("Saturday of Shit") is a 1988 Mexican film by Gregorio Rocha and his then-partner Sarah Minter, shot between 1985 and 1987.[1] The film is one of four independent films of the 1985–1991 period focusing on the lives of punk gangs in the Ciudad Nezahualcóyotl ("Neza York") suburb of Mexico City.[2] The specific gang was a group known as Mierdas Punks ("Shit Punks"), who were also featured in the documentaries Nadie es inocente (also by Minter), and La neta no hay futuro by Andrea Gentile.[3] The film is classified as a semi-documentary.[4]