No backdrop availableNo posterLech Janerka - śpij, śpij inteligencie2026MusicDocumentaryMay 16, 2026 · PolandSave to watchlistMark as seenShareDetailsStatusPost-productionRelease dateMay 16, 2026Original languagePolishSpoken languagesPolishCountriesPolandProductionTelewizja Polska,Fundacja SpectrumBudgetNot recordedRevenueNot recorded