Duplicity could be the Ghost World of 2008. A film that is simply fine but nothing great but gets more love than it should because of the people involved. Tony Gilroy is a gifted writer but I think his press clippings are a little much. "Michael Clayton" was good not great, an art house version of "The Firm". "Duplicity" plays like a lighter version of a lesser Mamet work; clever, twisty, forgettable.

If there's one thing that Tony Gilroy should be forced to stop doing though is playing with the chronology of his films. The flash forward at the beginning of "Clayton" sapped all of the tension out of the later chase scene. In "Duplicity", the jumps forward/back in time really don't add anything and again, it kind of saps the power out of one of the kicker scenes.

This movie is good enough to get a slight recommendation but there's no reason to see it in the theaters. It's almost the definition of a rental.