Seeing this query often enough, I now keep a standard response :-) :

• Moon Machines (great detailed breakdown of the Apollo program vehicles)

• Apollo 11 (50^(th) anniversary documentary, some very high resolution film, no added commentary)

• Mars Inside SpaceX (covers recent exploratory intention and activity, albeit not Starship)

• Fly Rocket Fly (documentary on the sad story of OTRAG)

• Cosmos series (with Carl Sagan). Also deeply philosophical, and despite its four decade age is little dated. Sagan had a way with words unmatched, per this little example (narration over video by Erik Wernquist).