[...] Pixel Prospector made a big list of videogame documentaries. [...]

[...] Pixel Prospector have compiled loads of things about gaming and made The Big List of Video Game Documentaries. [...]

You should definitely add “Get Lamp,” probably the most thorough game genre documentary in existence (www.getlamp.com).

Thanks for the tip, I have just added it. :)
Moreover @DutchMagic (twitter) also informed me that the director held a GoogleTechTalks presentation and showed the entire documentary there.

[...] The Big List Of Video Game Documentaries games video history archive [...]

Heya! There is a “making of” documentary of the Sierra Gabriel Knight 1 adventure game. One of the best games ever, shall I add.

http://www.youtube.com/watch?v=ZhFamZMyDK0

[...] The Big List Of Video Game Documentaries – Lisää:  Kaikki Aiheet: dokumenttielokuva, elämäkerta, hupia, kirja-arvio, kuva, richard+brody, roger+ebert, tietokonepelit, video [...]

[...] PixelProspector has made it easy for you to see what’s being/been made, and to even track down films that you never knew about even though they cater to your interests, by recently collecting and posting “The Big List of Video Game Documentaries”. [...]

You might want to check out Crunchtime. A 3-Part Channel 4 documentary about student game development contest Dare to be Digital. http://www.channel4.com/programmes/crunchtime/4od

Also an old-school behind the scenes of LBA2 (amazing game) http://www.youtube.com/watch?v=hDNVNImNI4s

[...] Look! A list of videogame documentaries. [...]

Production of this Dragon’s Lair documentary is in progress.
http://www.youtube.com/watch?v=SB9jgRpy9KE