After directing the short filmMargotita Polaco made his feature film debut with Diapasón, a modern retelling of the Pygmalion myth. It was followed by En el nombre del hijo, a film about a disturbed doll restorer and his possessive mother, for which he won a Golden Dolphin at the Festróia - Tróia International Film Festival in Setubal, Portugal, in 1988. All of his early films star fetish actress Margot Moreyra as the character Margotita. In 1989 Polaco made his most famous and controversial film, Kindergarten, starring Graciela Borges, Arturo Puig and Luisa Vehil. The film sparked controversy due to its alleged mistreatment of child actors, as well as a number of censored scenes: an adult woman and a child take a bath together, the same woman later on makes suggestive advances on the child, plus the inclusion of an unrelated, explicit oral sex scene. The movie was banned from theaters by the Justice one day short of release and a prolonged trial ensued over eight years, emotionally devastating Polaco and his fellow workers. The film remains unreleased in Argentina. It has gained notoriety as being the first film to be censored following the end of the military dictatorship in 1983. Polaco remained active nonetheless, filming Siempre es difícil volver a casa, his first major studio production, and La dama regresa, which served as a comeback vehicle for retired actress Isabel Sarli. Polaco retreated from directing for a period of time. 2001 saw his comeback, making the short film El milagro with famed ballet dancerJulio Bocca, contributing to the anthology filmHistorias de Argentina en vivo and directing another feature-length movie, Viaje por el cuerpo, for which he was nominated for Best Screenplay and Best Art Direction at the Argentinean Film Critics Association Awards, and won a Golden Apple at the New York LaCinemaFe. After some time working on it, Polaco gave up on the project of a modern adaptation of Hermann Hesse's Siddhartha. In 2007 he made the short film A Berta Singerman. In 2009 he teamed once more with Isabel Sarli and made the feature film Arroz con leche. Polaco's Kindergarten was eventually released on the 2011 Mar del Plata Film Festivalfor the first time since its shooting over 20 years before. He died on 20 February 2014 at the age of 67, from Parkinson's disease complications.
