Outstanding, but maybe I've got it all wrong.

Rating: 10/10 (23 February 2015)

Brilliant.
But I don't want to spend too much time on that. You either know it is or you don't.
I don't want to focus on the ending, but the beginning. I don't think he dies at the end, but at the beginning. From the first frame he is either already dead or very close.
Why? There is a shot of the jellyfish on the beach for just a split second at the end of the opening titles. And then we see him levitating in his dressing room and saying, "this place is horrible...we don't belong in this....".
All the other characters guide him in some way and are too perfect in performing their function. For example his terrible lead actor is knocked on the head and magically replaced by a leading Broadway actor. Or how his daughter reconciles with him without any real effort on his part. How his daughter instructs him that his life is not even an atom on her representation of all of human history on a single sheet of toilet paper.
This film is perhaps a settling in his own mind of the errors of his life, and a destruction of his ego in his final moments of life.