Greengrass takes pains to keep events believable and relatively unrhetorical, rejecting entertainment for the sake of sober reflection, though one has to ask how edifying this is apart from its reduction of the standard myths.
I've never had a more excruciating moviegoing experience in my life, and as brilliantly crafted -- and as adamantly unexploitive -- as the picture is, it still leaves you wondering why it was made in the first place.
This limitation in source material has had a peculiar effect on the script. Never is there a moment of repulsive sentimentality or exploitation, but neither is Greengrass able to realize an ultimate purpose.
Above all, one truth remains: the sacrifice of the 40 passengers on Flight 93 is truly remarkable. The film portrays their courage in the face of staggering odds in its own subjective and respectful way. It achieves what it wants as a film.