Yeah, this is a very well filmed documentary. The combination of the Phillip Glass score and some camera techniques that make the interview feel very in person and vivid definitely work. It's a fascinating and surprisingly frank look at someone that helped shape the last century, including making decisions that resulted in the deaths of 100's of thousands of people.
Fog of War is incredible. I haven't really seen anything else like it in the sense that powerful people very rarely publicly examine themselves and their lives the way McNamara does. The follow-up with Rumsfeld is so different because he doesn't.