I've watched these two EDM documentaries, I think you should check them out:

1) House - goes through the genre that, with techno, fathered trance

Pump up the Volume Vol.1

(look at the top for parts 2 and 3)

2) Trance - tours through the early trance scene in Berlin

Berliner Trance - Paul van Dyk german techno music love parade laurent garnier

Know any other good documentaries on EDM?