[D] What are the most inspiring/valuable ML documentaries?

Hi all,

I'm looking for documentaries on ML, the people working with ML, the challenges they face/faced and how they solve them. Doesn't have to be recent, docs that are 10 years old probably show the rise of ML and AI, with the people involved considered trailblazers and innovators.

Really enjoyed AlphaGo even though it's mainly focused on the actual program, I'm more interested in the people. The interesting ones tend to be hugely inspiring.

Thanks.

alphago challenges documentaries face machinelearning people show solve them trailblazers