This is a fantastic film that covers the trials of the 9/11 first responders and the 9/11 Truth activists in their quest to expose the truth behind the events of 9/11.

The 9/11 Chronicles: Truth Rising
http://www.youtube.com/watch?v=t-yscpNIxjI&hl=en

I would highly recommend purchasing the super high quality version from www.inforwars.com. It has some fascinating footage of the moments before the collapse of WTC7 with recordings of firefighters saying that the building is coming down and clearing the area. There is also testimony of a first responder saying that there was a countdown to the collapse showing clearly that the collapse of WTC7 was planned.

It is not meant to be a complete treatise of the evidence that disputes the official Bush version of 9/11. There are many other videos that do a great job of that. For example:

http://www.documentarywire.com/painful-deceptions-an-analysis-of-the-911...
http://www.documentarywire.com/911-mysteries/
http://www.documentarywire.com/911-revisited-scientific-and-ethical-ques...
http://www.documentarywire.com/911-a-new-standard-for-deception-by-kevin...
http://www.documentarywire.com/david-ray-griffin-september-11th-should-t...
http://www.documentarywire.com/loose-change-final-cut/
http://www.documentarywire.com/terrorstorm/

You can find many more free documentaries on 9/11 and other vital topics here:
http://www.documentarywire.com/

These free documentary sites are an excellent antidote to the corporate-state controlled mainstream media propaganda machine.