That was "In Plane Site" but that film was mostly BS. The video of the firefighters saying he thought there was bombs going off is true, and sizemologists have said that their equipment picked up sizemic activity that leads them to believe that bombs went off prior to the collapse of the tower.
http://www.whatreallyhappened.com/wtc2groundshake.html
http://www.whatreallyhappened.com/911_firefighters.html
http://www.whatreallyhappened.com/9-11_wtc_videos.html
Tons of 9/11 links:
http://www.911sharethetruth.com/