This success was followed by another adaptation of a novel , '' Crecer de golpe '' ( '' Growing Up Suddenly '' , 1976 ) , based on Haroldo Conti 's coming-of-age tale . At odds with the right-wing dictatorship installed in 1976 , Renán nevertheless directed a propaganda film , '' La fiesta de todos '' , on the 1978 FIFA World Cup ( played in and won by Argentina ) . In 1979 he starred as the main character in '' El Poder de las tinieblas '' , a dark film with political undertones , telling the story of a man ( Renán ) who has discovered a global conspiracy against blind people . Then , in 1980 , he directed and took the lead role in '' Sentimental '' , and received his first Konex Award ( the highest in the Argentine cultural realm ) , the following year . The film was also entered into the 12th Moscow International Film Festival
12th Moscow International Film Festival
12th Moscow International Film Festival
Sergio Renán