I still consider this one of the best scenes of any movie I have ever seen, all these years later I still get goosebumps and geek out a little when Viggo says, "Oh.". I am generally silent in the theatre and I almost bust out with a "Holy fuck." when he says that and hangs up the phone, perfect character set up and yet it's so clean and simple. Sheer elegance of story telling and world building.