The filmmakers also made use of audio material whose existence was known but which had never been synced to pictures.
In Apollo 11, Miller combines the newly excavated footage with some that's been seen before, but only in a cropped, 35mm format. Some of the found film is not as crisp as today's digital imagery, but it has an immediacy CGI-reliant tales of cosmic fantasy never achieve.
There are no voice-over commentaries here, no talking-head interviews or TV news clips. We hear Walter Cronkite, the Homer of the American space odyssey, but we never see his face. Other than the astronauts, the celebrities, including Johnny Carson, are just spectators, sweltering in Florida's July heat along with everyone else, as they wait for liftoff — and a glimpse of the day's real stars. The emphasis is on workaday procedure, not giant leaps.
Apollo 11 tells the story by an accumulation of small details: A rig in motion; a leaky valve; Aldrin's heart rate; snippets of flight data and diagrams superimposed on the screen. Close-ups of text-only computer monitors and pencil-on-paper calculations reveal the project's reliance on human smarts and dedication. Ordering a pair of socks online today involves more computing muscle than Nasa had in 1969.
Matt Morton's music throbs and pulses, using only the analog synthesisers available in 1969.
Like the engineers who somehow managed to send a man to the moon in the pre-PC era, Morton's score makes the most of its technical limitations.