Alternatively, perhaps there's a typo. Did they mean "Back to the Future" from 1985? No, the year is 1982. Wait, "Bacanal de Adolescentes" could be a Brazilian movie. Let me check if there's a 1982 Brazilian film with that title. Maybe "A Jovem Guarda 2" or something else? Not sure. Alternatively, maybe it's referring to a telenovela or a TV show.