Comic Con 2012 - Robert Downey Jr and Zach Galifianakis make impromptu 'Due Date' reunion at 'Iron Man 3' press line

Zach Galifianakis sneaks up on Robert Downey Jr. to surprise both press and his former co-star from 'Due Date' on the 'Iron Man 3' press line at Comic Con 2012

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Monday, Jul 16, 2012 1:06 PM