I look forward to seeing this documentary. The guy who produced it is kooky and great. This show is huge in Sweden, it highlights hit songs, using interviews with the key players talking about how the hit was created.
The documentary airs today (in Sweden) on SVT2 at 10:15pm. You can stream it here: http://www.svt.se/hitlatens-historia/se-program/del-1-1394 and you can watch a clip of it here: https://vimeo.com/80585999.