“9/11: In Plane Site” is a 2004 documentary that focuses on different conspiracy theories about the 9/11 disaster. The film is a joint project of director William Lewis and writer Dave von Kleist and consists of valuable footage and photographs of the September 11 attacks. These are meant to be irrefutable pieces of evidence that authorities were fooling the public. Several facts remain hidden despite the gravity of the situation. In fact, people are calling 9/11 as the worst terrorist attack in the US.