Based on training films used by Hungary's security agency in the '50s.
The 'exam' in fact existed. But the methodology of the exam depicted in the film was made up by screenwriter Norbert Köbli.
János Kulka was the filmmakers' first and only choice to play Markó. He remained in character for 22 days of shooting.
The National Film Institute chose 'The Exam' as one of the Basic Hungarian Films.