The Club of the Big Deed or The Union of a Great Cause is a 1927 Soviet silent historical drama film directed by Grigori Kozintsev and Leonid Trauberg about the 1825 Decembrist revolt.

Plot

The film centers around the Decemberist uprising in southern Russia, taking place during the winter of 1825, just before and during the rebellion. The story follows Medoks, a swindler and adventurer, who wins a ring with the initials "S. V. D." in a gambling den. These initials originally belonged to the fiancée of the man who lost the game, and throughout the film, their meaning changes multiple times, symbolizing different interpretations such as "Happiness Drives Fools," "The Union of Great Deeds," "Follow… Betray… Finish!" and "The Union of Merry Deeds."