That's the way he left it. I really don't think Dave knew how to end it and relied on the medias portrayal of him as a "do it as he sees it no matter what the fans want writer" to explain it. He disappointed so many people. I don't think anyone wanted to see Tony die. I sure didn't. So he won in the end with Phil, but it left so many loose ends.
As to the thought of a movie, I wonder how viable that is, since the last two seasons were such a let down. They'd have to have a hell of a trailer to get their money back imo.
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