Visual effects for the film were provided by DNEG. To create the images that would be displayed on the LED screens, Terragen, a scenery generation program, was used. Additionally, archival footage such as that of an Apollo launch was used, found by DNEG in a 70mm military stock that had not been seen before.

Is there real footage in First Man?

With First Man, you were in a relatively unique position of having a lot of real-world archival footage of the events depicted in the film. ... Damien wanted to keep it as true to the era and to the photography and film footage of the Gemini missions and the Apollo missions, and from the X-15 as well.

Does first man use real audio?

But for those they did not cast, including Bill Anders and Bruce McCandless, the filmmakers decided to use the astronauts' real voices from archival audio instead.