The documentary "Dub Echoes" shows how the Jamaican invention called dub ended up influencing much of the music we hear today, from electronic music to hip-hop, transforming the studio in a musical instrument and giving way to all of sonic experiments. Through interviews with over 40 key names on the history of dub, electronic music and hip hop, "Dub Echoes" connects the dots between of the otherwise fragmented relation between all this genres.
http://alternativemovies.blogspot.de/2009/06/dub-echoes-2007.html