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.

• Director: Yakov Protazanov
• Cast: Olga Preobrazhenskaya, Vladimir Maksimov, M. Trojanov, Alexandre Volkoff, Vladimir Gardin, Vladimir Shaternikov