Sam Stone who plays Julius Streicher, is a Jew whose father survived the Holocaust. It was only with the greatest difficulty that he maintained an impassive face during the scene where films of Nazi concentration camps are shown in the courtroom. Upon completion of the scene, he immediately burst into tears.
Brian Cox claimed that the sequence in which the courtroom is shown a film of Nazi concentration camps was filmed take after take with the actual film being projected, and that there was genuine walkouts on-set from crew members who couldn't take watching it anymore.
According to Brian Cox the producers wanted the miniseries to be the first of an anthology of WWII sagas, and they were interested in him returning to star as Winston Churchill. Though the project was never made, Cox would go on to play Winston Churchill in Churchill (2017)