I just can't accept that. There's just something in my personality... there has to be an answer damn it!!!!!!!
I actually got into a little debate over the ending with Dejan, I figured that ending (the one above) was a little too obvious.
On to the next one... Incepetion. Was he still in a dream?
And talking of open endings, haven't seen it for a while, but Donnie Darko. I ruined it by buying the Director's Cut after seeing the original. The Director's Cut shows you what Donnie's reading when he's reading through The Philosophy of Time Travel. The original left me wondering, the Director's Cut explained everything.