Director Tony Scott finds the perfect material for his frenetic style and we're kept enthralled by the events. The personal stories do their work and engage you with the characters and I'm with those who hail the movie as a tribute to the regular working class folks who keep this country running so that's something new. The sound design and settings make this a movie worth going to see in the theatre so you'll miss out if you wait until it comes out on DVD.
All in all, a very good outing.
(I can't figure out how to embed the video of the preview but go here if you want to watch it.)