Another thing that grated on me about When We Left Earth Sun. night

In the first few minutes, the X-15 was mentioned and footage was
shown. The VO intoned the reasoning behind the X-15 was "...NASA
wanted to get into space and they were in a hurry...".

Well, the X-15 was as I'm sure you all realize a research aircraft
designed to explore flight regions and dynamics beyond the
capabilities of other aircraft of the day. It was not a spacecraft
other than incidentally. Space was part of its operating realm, and in
the high profile missions the pilots did experience 0g, and X-15
pilots did earn astronaut wings (some did, I don't know about all).
But when you hear the X-15 referred to, then or now - it is always
termed an aircraft, not a spacecraft.

Personally, I'd love to see a multi-part Discovery Channel series on
the entire X series of aircraft. Talk about nichy! Limited commercial
appeal would guarantee such a thing would never get off the ground -
so to speak. Such a show was made many years ago. I don't recally who
produced it but I do remember Lloyd Dobins of NBC news narrated it. It
was called the The Rocket Pilots. I've got it on tape somewhere. Great
interviews with Yeager and Crossfield and great footage including the
X-15 ground test explosion.