Recently, I watched Andrei Konchalovksy’s 1965 film adaptation of Chingiz Aitmatov’s novel The First Teacher.
Basically, it's 1923 and an overenthusiastic but superficially Bolshevised Red Army veteran, demobilised after the Communist victory in the Russian Civil War, struggles with ridicule and distrust at the hands of villagers in his native Kyrgyzstan, where's he's been sent to do propaganda work.
The opening scene:
At his makeshift 'school,' he points to a portrait, telling his little pupils, who're a world away from what's been going on elsewhere, 'Here is Lenin, leader of the world proletariat.'