I have always enjoyed watching tech documentaries. It's fun to learn about different technologies and the people behind them.
Here is a list of my top 5 favorites (for now) in no particular order:
A full length documentary about Deepmind's AlphaGo program and how it defeated Go world champion, Lee Sedol.
A story about the creators of GNU/Linux and the Open Source movement.
The Queen of Code
A short (around 15 minutes) documentary about Grace Hopper.
A great film about the rise and fall of Compaq.
GraphQL: The Documentary
A mini documentary about the origins of the GraphQL spec.
Do you have a tech documentary that you would recommend?