Ukroshcheniye ognya (Taming of the fire / Baendigung des Feuers)
directed by
Daniil Khrabrovitsky
USSR 1972, 166 min
Rather than being a classical SF film,
Taming the Fire dramatizes the evolution of the Soviet space program - from military rocket system "Katjusha" to the first space ship "Vostok". Head character is based on real person Serguei Korolyov, the father of Soviet space program.
astronautix.com >> super detailed info