‘The Hangover 3′ First Look: Zach Galifianakis Back in Vegas
'The Hangover, Part 3' has returned to its old stomping grounds in Las Vegas where it was filming this past weekend and we see goofy Alan (Zach Galifianakis) wearing a very familiar outfit. So what does this tell us about the secretive plot of the third 'Hangover' movie?