I'll admit the book had some problems, but overall it was still a great book.
Now, this movie on the other hand. I don't know if they cut together the trailer to get more mass market appeal, but I'm certainly hoping so. Otherwise this would be a movie about a Gatsby who is a brooding, gravelly-voiced twit, instead of somebody who is trying so hard to fit into high society it hurts. Additionally, the book fairly effectively broke up the crazy, high energy party scenes with slower, less frantic "Let's just talk and characterize for a while" scenes, partially to give everything a sense of depth or scale, but I'm seeing no evidence of the latter's existence.
...And is it just me or does it seem like Toby Maguire thinks that Nick Carraway has a British accent?