My local library has "A Funny Thing Happened on the Way to the Moon" on DVD. I had hoped when I saw the listing that it was related to the paperback, which came out about 1970, and told of a lot of the humorous stuff in the space program ("Why don't we just call it FRED?") I lost my copy of this long ago.
Once I knew what the DVD was all about, I started to watch it, wondering what they had to say, but I couldn't even get 5 minutes into it.
I tuned out when it became obvious that it was just a Michael Moore-type anti-American diatribe. They wanted to condemn the United States, and were using the space program to do that, as a convenient club to whang on us with.
I don't know if they actually got around to talking about space or not. I gave up during a lot of film from Viet Nam.