Mario Piazza was born in New York City in 1956, but he lives in Rosario, Argentina, since he was ten months old. He was 21 when he finished his short Super 8 film "Sueño para un oficinista" (1978), screened at the concerts of the local rock band Irreal, that performed the film's soundtrack live. His documentaries "Papá gringo" (1983), "La Escuela de la Señorita Olga / Ms. Olga's School" (1991) and "Cachilo, el poeta de los muros / Cachilo, poet of the walls" (1999/2000) have had considerable circulation and recognition at film festivals and art events. “Madres con ruedas / Mothers on Wheels” (2006) was commercially released in the cities of Rosario and Buenos Aires, and was awarded and exhibited in several countries, including Brazil, Spain and China.