Moleman: the art of the algorithms, is a wonderful documentary devoted to a scene that emerged in the last century from the commercial introduction and massive computer Commodore 64, ZX Spectrum or Amiga, and 8-bit video games of the decade of the 80's: the demoscene.
The demoscene is a computer art subculture that specializes in demos, which are audio-visual presentations and interactive real-time running on a computer. The purpose of a demo is to show musical skills, artistic and programming.
At first everything was limited to parties called games copy parties, and then replace versions of the game intros and crack it, but these cracktros achieved independence and create their own scene where free games was not the most interesting - to generate and run graphics and music became a subculture devoted to audio-visual production.
While the graphics and video software is developed to facilitate the creation of complex visual through tools like Flame, After Effects, Final Cut and iMovie elemental, the demoscene subculture instead has had to impose artificial constraints in order to exploit the capabilities antique computers like Commodore 64.
The demos are not videos, are programs that run in real time and demoscene artists believe that one way to encourage your creativity and find innovative ways to generate graphics and music is through limitations on the final size of their programs.
The art of the algorithms are 90 minutes devoted mainly to the Hungarian demoscene scene that you can not lose and you can share freely. Sure, is licensed under Creative Commons and you can download the torrent from their site.