No backdrop availableNo posterHmoty zítřka1961DocumentaryMarch 3, 1961 · CzechoslovakiaSave to watchlistMark as seenShareDetailsStatusReleasedRelease dateMarch 3, 1961Original languageCzechSpoken languagesCzechCountriesCzechoslovakiaProductionStudio populárně vědeckých a naučných filmů PrahaBudgetNot recordedRevenueNot recorded