Drama, Adventure | Aug. 22, 1960
Drama, Adventure | Aug. 22, 1960
| Producers | Sverdlovsk Film Studio |
| Original title | Хмурый Вангур |
| Directors | Anatoliy Dudorov |
| Writers | Oleg Koryakov |
as Boris Pushkaryov
as Nikolay Pletnyov
as Yura
as Student Natasha
as Professor Aleksei Kuzminykh
as Mikhail Kurikov
as Vasiliy Kurikov
as Stepan
as Secretary