Documentary about a political episode during the Brazilian military dictatorship, which resulted in the issue of the Institutional Act #5 (AI-5), abolishing freedom of opinion in Brazil, and marking the transition to the toughest period of violation of human rights in the country. The episode was the Congress Assembly on December 12th, 1968, in which its members denied permission to punish congressman Márcio Moreira Alves, as was the Government's wish.
| Actor | Role |
|---|---|
| PPaulo MarkunHimself | Himself |
| MMárcio Moreira AlvesHimself | Himself |
 Maurício BrancoMárcio Moreira Alves | Márcio Moreira Alves |
| MMário CovasHimself | Himself |
| GGeraldo FreireHimself | Himself |
| BBeatriz GemalNysia Carone | Nysia Carone |
 Monique LafondJúlia Steinbruch | Júlia Steinbruch |
| AAlmir MartinsMário Covas | Mário Covas |
| JJarbas PassarinhoHimself | Himself |
 Tonico PereiraJosé Bonifácio | José Bonifácio |
| JJoão VieittasGeraldo Freire | Geraldo Freire |
| HHumberto de Alencar Castelo BrancoHimself (archive footage) (uncredited) | Himself (archive footage) (uncredited) |
| AArthur da Costa e SilvaHimself (archive footage) (uncredited) | Himself (archive footage) (uncredited) |
 João GoulartHimself (archive footage) (uncredited) | Himself (archive footage) (uncredited) |