Do you realize how many hundreds of films have been made based on actual events where the director infuses his own speculative version of events into the film? Obviously nobody knows exactly what happened in the plane, its just a movie. I have no idea why you are singling this movie out, there's hundreds of well known films like JFK, Mississippi Burning, Titanic, etc.... that are based on real events where the director has to fill in the gaps with his own version of events.