Don't know if it's been brought up in this thread already, but there's another one of these videogame documentaries over on Kickstarter, titled "
Us and the Game Industry", partially following Thatgamecompany for the development of Journey. Only 9 days left on the thing, but they've only raised $4,000 out of their $20,000 goal.
There's some other stuff from the description mentioning coverage of Die Gut Fabrik (Joust) and Jason Rohrer (Passage, Sleep is Death, Inside a Star-Filled Sky), including bits where him and Jenova Chen are playing Sleep is Death.
Anyways, there's at least a few bits in the video there with Jenova and Robin talking Journey.