Road To The Stars
A historical document fallen through a wormhole from an alternate universe: 1957 Soviet film from director Pavel Klushantsev, which starts out as a biopic of space pioneer Tsiolkvskiy, and in its final section ( around 24 minutes in) depicts in amazingly realistic detail the launch of the first man into space, construction of the first space station in orbit around Earth, the first manned landing on the Moon, and glimpses of expeditions to Mars, Venus, and Saturn. May have been an influence on Kubrick - some shots in Road to the Stars are pretty much duplicated in 2001.
(Link via Kosmograd)
Russian moon-lander drops towards Clavius Crater.