Best Documentaries on 9/11

[The Thriller]

I have 102 mins that changed America.

But right now I'm thinking about the National Geographic: Inside 9/11 one. Apparently disc 1 is cool, because it gives you some background. Whole disc 2 shows the attacks. How long is it?

Any other suggestions would be much appreciated.

 

[Boris]

Architects and Engineers for 9/11 Truth sells some good DVDs.