Click the arrow to watch the film. Video source: Dan Beaumont Space Museum YouTube channel.
It will be a 42-minute investment of your time, but this week's Retro Saturday film is a rare 1965 Russian documentary (with English narration) about the early days of the Soviet space program, primarily about Alexei Leonov perparing for the first human spacewalk on March 18, 1965.
The documentary's title is Человек вышел в космос, which roughly translates as “Man Went Into Space.”
It's worth watching just for the extremely rare footage. Like many space documentaries of the era — American and Soviet — this one borders on propaganda, but it's fascinating to watch how the Soviet space program trained its cosmonauts compared to all the NASA documentaries of the era.