Greengrass has a tendency to speak slowly and ponderously but is very articulate when he explains his intentions for a given scene or talks about the events of that day. He points out that several of the air traffic controllers in the movie are the actual people who were working on 9/11. Greengrass tends to spend a little too much time talking about “the systems” that were in place on that day and how they broke down (in terms of communication) because what was happening was so unimaginable. He gets a little pretentious at times but does speak knowledgably about the film.

As Cubist has already said. Paul can sound a little pretencious at times but i dare say he was treading on very careful ground when it came to this film and its DVD extras. Sept 11 is still a touchy subject and one wrong word and he will get so much bad press.
This commentary is decent enough and it does sound like Paul is following the official story of Sept 11 so dont expect opinions and conspiracy banter.

I found this commentary to be interesting. Its what i call a good but not fantastic commentary track.

I agree with the other posts, but I did find Greengrass's voice a soothing one over this extremely emotional film. Listening to him speak reminds you of how great a job he did making the movie.

Greengrass' style of commentary seems very sincere and passionate from his part, but is a true nightmare for the listener. There are commentators that distract the listener with digressions, but in the case of a Greengrass track in general and this one in particular, the whole commentary looks like one big unified digression, with a lot of narration of scenes with explanations about what's happening in them...