I knew a preacher whose day job was as a furniture mover. He asserted that NASA shot the moon videos in that huge building 5 on the Johnston Space Center. It is a movie studio, he said. I had to work as a mover after I graduated into the 1973 post-VietNam recession. That or live with my parents and work retail.
I installed and tested equipment in building 5 of JSC from 1976-1979. Building 5 is full of computers, tape recorders, digital processors, display consoles, and 36 button telephones (which I tested modifications to). There were about 6 IBM 360 mainframes on the main floor, fed by 10 or so interdata minicomputers that my employer installed and programmed. A whole room full of telephone equipment to receive & transmit 4 T1 lines to remote ground stations and decommutate them to digital streams. Vast breaker panels & busbars to power all that stuff. Feeds from two AC lines and a set of AC from 6 diesel generators the size of locomotives. Huge air-conditioners to cool all that stuff. I saw no big soundstages or film cameras.