Planet of SecretsDocumentaryPlanet of SecretsDocumentarythumb_upthumb_downPlanet of SecretsDecember 1, 1964Directed byMikhail KaufmanA popular science film about the exploration of one of the planets of the solar system - Mars.SUlanguage Russian Last Updated: 16 days ago Request Update CastLeonid KhmaraNarrator (voice)Nikolay KozyrevHimselfNikolay BarabashovHimselfGavriil TikhovHimself