In an early concert scene, we see Cazuza's manager, Zeca (Ezequiel Neves), going crazy in the crowd. The real Zeca, middle-aged, is standing next to him, wearing glasses.
Cazuza's manager Zeca passed away in the same date he did, exactly twenty years later.
Cazuza's real mother, Lucinha de Araújo, can be seen in the crowd in the last concert scene