I didn't find the much talked about ending ambiguous. There wasn't any ambiguity, there really wasn't anything to misunderstand. The ending was just way different from traditional movie climaxes, especially when you've been led to believe you were watching a convetional albeit very well made thriller.
Yeah, right. The Coens and conventional.
The first reaction me and my wife had was quite similar to this. You can find a more serious discussion here, if you have watched the film and want to know more.
I'm happy No Country.. won Best Picture. Very un-Academy like, I'd say.
