- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)135
- Lennauchfilm3
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)2
- Applebaum, Anne1
- Azerbaijanfilm1
- Belarusfilm1
- Berliner, Joseph S.1
- Davidenko, G.1
- Fitzpatrick, Sheila1
- Gruzinskaia Studiia Nauchno-populiarnykh i Dokumentalnykh Filmov1
- Kazanskaia Studiia Kinokhroniki1
- Kotkin, Stephen1
- Miller, Jacob1
- Siegelbaum, Lewis H.1
- Spielmann, Karl F.1
- Stowell, Christopher E.1
- Sverdlovskaia Kinostudiia1
- Swianiewicz, Stanisław1
- Tsentrnauchfilm1
- Vertov, Dziga1