Moleman 2 - Demoscene - The Art of the Algorithms (2012)

Also, a fantastic visual guide is the documentary film "Moleman 2" (2011). It's freely available to watch on YouTube; highly recommended: [VIDEO]

Moleman 2 - Demoscene: [VIDEO] Moleman 4 - Longplay (A videogame documentary): [LINK] Both are expertly crafted and fun documentaries about their titular subculture with a Hungarian twist.

If you are interested in today's* state of the demo scene, check out the documentary "Moleman 2 - The Art Of The Algorithms (2012)": [VIDEO] *Granted, it's 5 years old, but still awesome :D!

There is a nice documentary on the history of the demoscene, with some introspection to the creative process behind a demo/intro. It was made by a Hungarian team, who has other interesting documentaries on underground culture. It is also available in English, at: [VIDEO]

Demoscene is such an interesting form of art. If you are interested, watch this documentary: [VIDEO] The 4k (not the resolution) are very impressive.

I second this recommendation for Moleman 2 documentary, but the video I found has a different link: [VIDEO] Looks like this version is in English, while the earlier link is in Hungarian, otherwise they appear to be the same film.