2010 Toronto Film Festival: Zach Galifianakis Talks 'The Hangover 2' & Working With Robert Downey Jr.

Zach Galifianakis chats with Access Hollywood guest correspondent, Entertainment Weekly's Dave Karger, about "The Hangover 2" -- when is he scheduled to start filming? Who are some of the new stars that will be joining the original cast? Plus, what was it... more

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