One thing that has amazed me is the chain of events that had to occur so that we could see the film last night.
There was the documentary about a "probie" being filmed at the fire station closest to the WTC. They were called out to a possible gas leak that was less than two minutes from the WTC, which made this crew the first to reach the WTC. I may be wrong, but I believe they are the only ones to capture the shot of the first plane hitting the WTC. They were in the first building hit, but the second to collapse. If they had been in the other building, it is possible they would have perished and we would not have the footage we saw last night.
It may all be a string of coincidences but, IMHO, this film crew was meant to be there to document the events of the day.