In the Depths of the Sea (1939)
About Soviet underwater research of the depths of the seas and oceans.
Directors: Aleksandr Zguridi, Boris Dolin.
| Directing | Aleksandr Zguridi | Director |
| Directing | Boris Dolin | Director |
| Camera | M. Piskunov | Camera Operator |
| Camera | Eduard Ezov | Assistant Camera |
| Sound | Viktor Oranskiy | Music |
| Sound | A. Prozorov | Sound |
| Writing | V. Yazvitskiy | Writer |