I actually enjoyed this film quite a bit! The most controversial topic amongst metal heads seems to be the genre tree that Sam Dunn created. Who could get one of those trees correct anyways? It would be like trying to get a tree of the Gothenburg scene which would be almost impossible! Still I wish he had been able to get in more interviews with some of the bigger names in modern metal.
The interview with Ghaal has to be one of the most hilarious things ever but also the creepiest.