The film is "loosely based" on the 1979 memoir O Que É Isso Companheiro? (in English: What's This, Comrade?), written by politician Fernando Gabeira.
Film tersebut "berdasarkan pada" memoir 1979 O Que É Isso Companheiro? (dalam bahasa Inggris: What's This, Comrade?), yang ditulis oleh politikus Fernando Gabeira.