Life of Pi (fantastic film, while on the topic) argues that whatever your reason tells you on the question of the existence of God, since neither stand can be proved and since neither has any real effect on your life or an explanation for the way the world is, you might as well believe in God simply because that's the "better story."
And, if none of the stories currently floating around in favour of the existence of God quite fits in with your tastes, it still gives you the opportunity of constructing a better story than anything the No God alternative provides.
An excellent argument. A storyteller's argument. Should win over a few cinephile apatheists.