What a great villain.
Just to clear something up, I'm referring to him in Flight Plan; I haven't seen The Green Lantern. Hey! Don't put your mouse over that "spoiler" bar just yet; I did that because he's a surprise villain, and it's done so well. Write down "Peter Sarsgaard airplane" somewhere, then look it up when you can't remember this topic.
This is the kind of guy who can give you the creeps just by looking at you. Flight Plan may not have been anywhere near the best movie I've ever seen, but Peter did his job well in that role.
"There is no escape, John!"