The police VW seen when Eunice is taken to the DOI-CODI facility has an RJ door mark, which indicates that belongs to the State of Rio de Janeiro. At the time (1971), however, the City of Rio de Janeiro was the capital of the State of Guanabara, recognized as GB. The consolidation of the two states did not happen until 1975.
In the beginning of the story (1970/71), before her trip to London, Veroca (played by Valentina Herszage) listens to an album from the Brazilian record label Som Livre. The label that appears on the album (a stylized S) was only adopted by the company in 1978.
In the year in which the plot takes place, the record company's logo was a drawing of a green and blue spiral.