Ignoring the dumb characters and the weird script, this movie isn't too bad.

Rating: 7/10 (2 August 2008)

This movie is to my opinion just another movie in the line of those that base their horror on the events of 9/11 and other terrorist attacks, just like "Cloverfield" (for example). M. Night Shyamalan did his share of good-ideas-gone-bad, and yet this one seems to be not so bad after all. If you could just ignore the dumb characters, the horrible script and the entire point of view this film is taken from, you might just end up watching an excellent thriller where you're scared even before something terrifying really happened. Also, the suicide scenes are done in my opinion in a very professional way. One can always turn this movie into a gore movie with a click, and yet Shyamalan decided to not use his R rating to that point, making this movie not about "OMG THIS IS SO %#$%#$^$ING GROUSE!".
So, in conclusion, this movie is actually a really descent one: only with the right expectations.