Taking the criticism to heart, I decided to go see it again, and I liked it even better this time, which I really didn't expect. I actually liked the story better, but the real difference was Amanda Seyfried. Her versatility is awesome and she even had some of the best lines, "The poor die, and the rich don't live." I haven't' really liked her rolls that much until now or the movies she was in.
Some other things:
I thought "Darwinian Capitalism" was very appropriate, at least from her father's viewpoint. The fittest, in this case the luckiest, survived. It could also be applied (unintentionally) to the idea that the fittest economic system is where money is the medium of exchange, not time--but that's for a political thread.
I agree with the Bonnie and Clyde comparison, it occurred to me when I saw it the first time, but disagree that they should have followed B & C's example. I think the ending was set up beautifully [spoiler]by the death of his mother under the same circumstances.[/spoiler]
I don't think Cillian Murphy's performance was flat, it was perfect for the role, making him well cast. But it WAS almost identical to his roll as Fischer in Inception. He may become type cast or labeled as a character actor, which will limit his career, but those two performances, on their own, were excellent. I expect he can do more. If not.....