Together with the crew, Paweł Kędzierski managed to record the statements of nine cichociemni, including the only woman from this distinguished group - Elżbieta Zawacka, pseudonym "Zo". Two of the film's characters did not live to see its premiere. Neither of them is alive today. Thus, the documentary managed to capture for posterity the memories of the last living cichociemni, which gave it historical value.