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UK, January 5, 2009 - Iron Man 2 will revolve around the nature of identity, according to screenwriter Justin Theroux.

He told MTV his thoughts for moving the sequel on from the first instalment: "The obvious thing to improve upon - well, it's not even an improvement it's just something to embrace - which is that he's now a hero that lives in the real world. That's unique."

He is referring the to the fact that



(*****SPOILER ALERT*****)


Tony Stark revealed to all at the end of the first movie that he was the iron-clad super-hero, with the script for Iron Man 2 seemingly set to resolve around the problems this brings up.

This aspect of the character, says Theroux, is "something that we've made a real decision to run towards rather than away from."