Concert film documenting the foundational stage of the Argentine 'rock nacional' movement. It was filmed during the third edition of the historic B.A. Rock rock festival, which took place in 1972 at the Argentinos Juniors stadium.

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Main Cast: Luis Alberto Spinetta, Black Amaya, Rubén Basoalto, Carlos Cutaia, Claudio Gabis, Charly García, Nito Mestre, Horacio Gianello, León Gieco, Edelmiro Molinari

Director: Anibal Uset

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