Short answers, pulled from the story.
Moonwalk One is a feature-length documentary film about the Apollo 11 mission, first shown publicly at the Cannes Film Festival in the summer of 1971 and released theatrically in the United States following its inclusion in the Whitney Museum of American Art's "New American Directors" series. A restored Director's Cut was released on the 20th of July 2009.
Theo Kamecke directed Moonwalk One. He was brought in by Francis Thompson after the original MGM-backed production collapsed six weeks before the Apollo 11 launch. Kamecke had previously edited To Be Alive!, the multi-screen film that won the Academy Award for Documentary Short Subject in 1966.
NASA provided $350,000 to make Moonwalk One. This was far below the original plan, which had called for a theatrical production of several million dollars at minimum, funded by MGM.
When the film was completed in 1969, distributors declined to pick it up, judging it too long and noting that the public was already saturated with coverage of the US space program following several lunar missions after Apollo 11. Even after about 15 minutes were cut at NASA's direction, the film failed to attract distribution.
The film opens with Stonehenge, an idea that came to director Theo Kamecke while scouting Cape Canaveral. He had seen the stones at a sunless dawn the previous year while filming in England. The ancient site and the Apollo launch site seemed inseparable to him, and the film's score draws a deliberate musical thread between them, with the Stonehenge music bookending the documentary.
Dye transfer is a printing method in which black-and-white fine-grain masters are created for each color, run through a bath of ink, and contact-printed onto clear acetate in successive layers, similar to book printing. Moonwalk One was assembled using this process by Technicolor in California, and is considered one of the last American films made with it, as light-sensitive emulsion film had become both technically superior and cheaper by the time production was complete.