Awash in the excesses of Las Vegas during the economic crisis, Joseph Garner was working on The Hangover as the assistant to director Todd Phillips. It was there he thought to do the above documentary. Also, it was there he met Zach Galifianakis. Zach decided to help out as an executive producer because: “I really liked the heart of the movie. We are so inundated with films that are loud and over the top I thought, ‘What a nice little film’ … it is a movie that has some real warmth to it.â€Â “Loud and over the top†films? I wonder what The Hangover trilogy star might be referring to…