You can have immediate regrets, but if you look at stuff and say, 'Things happen for a reason', there's a fatalistic thing about it. Something will happen that will justify it in some way.
Whereas 'Avatar' and other movies get shocks out of their three-dimensionality, 'Gatsby' is going to be about inviting the audience into this larger-than-life drama, letting them almost be inside the room rather than looking at it through the window. I think it will really work.