Perusahaan Produksi
Leningrad Popular Science Film Studio
Negara Produksi
Soviet Union
Info Cepat
| Judul Asli | Тайна вещества |
|---|---|
| Rilis | January 1, 1956 |
Leonid Khmara
Narrator (voice)
Alexander Mgebrov
(uncredited)
Nikolay Dmitriev
Butlerov (uncredited)
Sergey Evlakhishvili
Pierre Curie (uncredited)
Maryana Safonova
Marie Curie (uncredited)