Fly Rocket Fly
The story of the first private individual to found a space company. The German engineer Lutz Kayser starts OTRAG in the early 1970s and works on producing an inexpensive rocket.
Starring
Watch "Fly Rocket Fly" on Curiositystream (Prime) released in 2018. It's a documentary and biography movie, and has a rating of 7.7 out of 10 from Imdb which is usually fine for this kind of movie.