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In page Cinema of the Soviet Union:

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Beyond this, the government was principally able to fund only short, educational films, the most famous of which were the agitki – educational films intended to agitate, or energize and enthuse, the masses to participate fully in approved Soviet activities, and deal effectively with those who remained in opposition to the new order. These short (often one small reel) films were often simple visual aids and accompaniments to live lectures and speeches, and were carried from city to city, town to town, village to village (along with the lecturers) to educate the entire countryside, even reaching areas where film had not been previously seen.[citation needed]