Adventure | Jan. 1, 1978
Adventure | Jan. 1, 1978
| Producers | Kievnauchfilm, Inter Allianz Film |
| Original title | Алмазная тропа |
| Directors | Y. Zel'dich, Vladimir Khmelnitsky |
| Writers | Alexey Leontyev |
as Nadjeshda
as Professor Pavel Shestakov
as Vera Lesun
as Fjodor
as Lyonka
as Dirigent Nikolay
as Professor von Heyden
as Dmitriy Borovskiy
