Movies by Olga Preobrazhenskaya

Petersburg Slums
Five-episode adaptation of the eponymous Russian novel, directed by Pyotr Chardynin et al.

The Keys to Happiness
Directed by Vladimir Gardin and Yakov Protazanov, this two-part epic was the most expensive Russian film at the time and smashed box office records. It is now considered lost, with only a 4 minute clip surviving.
Plebeian
Based on the play Miss Julie by August Strindberg.

War and Peace
An adaptation of the Tolstoy novel.