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.
Unfortunately the movie The Keys to Happiness is not yet available on HBO Max.
| Directing | Vladimir Gardin | Director |
| Directing | Yakov Protazanov | Director |
| Writing | Anastasiya Verbitskaya | Novel |
| Writing | Anastasiya Verbitskaya | Screenplay |
| Camera | Joseph-Louis Mundwiller | Director of Photography |
| Camera | Giovanni Vitrotti | Director of Photography |
| Camera | Aleksandr Levitsky | Director of Photography |
| Art | Cheslav Sabinsky | Production Design |
