This article is part of the project ‘Kaleidoscopic Patterns of Protest’, which analyses visual and textual (self-)representations of East Slavic protest cultures. As an ideal candidate for testing a video annotation task that would meet the project’s goals, we chose the documentary <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">We Didn't Know Each Other Before This Summer </hi>(Abramchik 2021). The film focuses on the protests in Belarus following the presidential elections on 9 August 2020. It provides a detailed audiovisual documentation of symbols, behaviours, police actions and other features of the protests. Constructed from footage of participants and witnesses, the film offers an unfiltered, day-by-day narrative of collective actions and police responses, without outside commentary or music. It also highlights the regime’s human rights abuses and public reactions. The documentary offers a valuable resource for studying visual representations of protests and testing LLMs ability to annotate such material, as it provides unique, unedited grassroots footage with uninterrupted protest action sequences.