Clicking will not reveal spoilers, unless you read the linked article. ;-)
One of the best reviews I've read about Flightplan can be found here at Roger Ebert on Flightplan.
There are a few spoilers there in the review, but nothing major. In fact he refuses to go past a certain point in his review because he knows it will give something away that will spoil the surprise.
I agree! I saw it today, and I thought it was fantastic. And not just because of the Bean, either. He was, of course, totally marvelous and perfect in every way. ;-) I'll say no more. But don't take my word for it, go see for yourself. See this film at your earliest convenience. IMHO you will not be disappointed.