“United 93,” 13 May 2006, theater. This is not a docudrama. It is a fascinating, painful dramatic exploration of the fourth 9/11 plane featuring the uprising of the hostages. It portrays a system caught with no plans for such eventualities and VP and Pres very much not in evidence or in charge. Quite fascinating, especially about the air traffic controllers and the military who sought to act and were powerless to do anything at all. The power of chaos. Were the terrorists as they are portrayed in the film?. Some deranged zealots, others calm and almost sympathetic figures?. We’ll never know. The scene of hostages and hostage takers praying at the same moments both works and grates as overly contrived. But this is a powerful and disturbing movie that should, like “Bloody Sunday” made by the same filmmaker, be seen.