Sergei Loznitsa’s film The Trial is composed from the original footage of one the first Stalinist show trials. The only additions are intertitles, which reveal at the end, for anyone who didn’t already know, that the ‘Industrial Party’ never existed. Some of the footage was used in a 1931 propaganda film directed by Yakov Poselsky (and, as Loznitsa joked in his introduction at the ICA, by Joseph Stalin). A team of investigators worked on producing the show trial for more than a year, drafting the script and coaching the actors. It isn’t clear if the public filling the hall are aware of their role: some listen to the proceedings intently, others fall asleep, some take notes, others shield their eyes when the lights are on them.