The Mystery of Matter (1956)

Elenco

• 

  Leonid Khmara

  Narrator (voice)

• 

  Alexander Mgebrov

  (uncredited)

• 

  Nikolay Dmitriev

  Butlerov (uncredited)

• 

  Sergey Evlakhishvili

  Pierre Curie (uncredited)

• 

  Maryana Safonova

  Marie Curie (uncredited)