The thing I appreciated most about this movie was the still moments, so unlike the average bombastic Hollywood product that never has a stop-and-listen moment, a stop-and-consider moment or a stop-and-feel moment. (Ever notice in American movies of the last ten years, even when the characters are stopping to think --rare as THAT is-- there is a veritable tempest of Wagnerian bluster on the sound track. Mainstream movies have gotten to where they never, NEVER shut up and let up, even for a moment; you must be manipulated every second you are in the theater. I walk out of "intense" movies, not exhausted, but rather, quite vexed by the hammy, heavy-handed obviousness of it all. --And a little deafened, usually, besides.)
There was nothing obvious in this film. At the end, you feel closure, and yet you are free to wonder at exactly what Harry's behavior meant and about the origins of his unique world-view. That is a thing to treasure, a movie that knows enough what it is about to offer closure, yet leave your mind free to wander over the relationships and lives of the people you have just watched briefly from a distance, and reflect on possible meanings.
A wonderful film.