When it is discovered that the Zygmunt mine in Upper Silesia has been deemed unprofitable and is to be closed by flooding, the miners go on strike and a violent demonstration ensues.
CountryPoland
Runtime1 hour 51 minutes
Production year1972
Also known as
Perla w koronie, A korona gyöngye, Helmi kruunussa, La perla de la corona, Pearl in the Crown, Perła w koronie, Perlen i kronen, Жемчужина в короне