ShoWest 2010: Zach Galifianakis Talks 'Hangover 2' & 'Due Date'

How has life changed for Zach Galifianakis after his success in "The Hangover"? Plus, how far along is "The Hangover 2"? Does he think they should make another one? And, how is his "Due Date" character different from his "Hangover" character?

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