It is somewhat of a surprise that Wajda would have been able to make such a film, sub silentio attacking the socialist realism of Nowa Huta, revealing the use of propaganda and political corruption during the period of Stalinism. The film director presaged the loosening grip of the Soviets that came with the Solidarity Movement, though it has been acknowledged by Polish film historians that due to censorship the script languished in development hell since 1962. The film extensively uses original documentation footage from the construction of Nowa Huta and other subjects of Poland's early communist era, as well as the propagandist/inspirational music of Stalinist Poland. Agnieszka has trouble making the film from archival sources and museum collections and from interviews with people whose answers provide partial information on Birkut's life, but who don't seem to know about his current location or situation. The authorities decide that the young student digs too deeply into the recent past, and inform her that their permission to create the film is withdrawn. Her equipment and the materials she gathered are confiscated. Agnieszka's father speculates that there must be a single specific reason for the authorities' fear of further disclosure and suggests that she should locate Birkut and talk to him to find out more, even if she is no longer involved in making the film. With this inspiration, Agnieszka tracks down Mateusz's son, Maciej, in the Gdańsk Shipyard. (Both father and son, Mateusz and Maciej, are played by the same actor: Jerzy Radziwiłowicz.) Agnieszka learns from Maciej that his father died years ago. The ending of Man of Marble leaves the death of Mateusz Birkut ambiguous. In his script, Wajda had wanted to reveal that Mateusz had been killed in clashes at the shipyards in 1970, a major confrontation that prefigured the rise of Solidarity ten years later, but he was prevented by censorship. In 1981, Wajda filmed Man of Iron, a follow-up to Man of Marble, which depicts Maciej's subsequent involvement in the Polish anti-Communist workers' movement. Man of Iron extensively deals with Mateusz's killing in the clashes of 1970. Donota Niemitz and Stefan Steinberg write: Cast Jerzy Radziwiłowicz – Mateusz Birkut / Maciej Tomczyk Krystyna Janda – Agnieszka Tadeusz Łomnicki – Jerzy Burski Jacek Łomnicki – Young Burski Michał Tarkowski – Wincenty Witek Piotr Cieślak – Michalak Wiesław Wójcik – Jodła Krystyna Zachwatowicz – Hanka Magda Teresa Wójcik – Editor Bogusław