“The Hangover” was one of those movies that blew up to such a degree that just about everybody you knew saw it in the theaters. While Zach Galifianakis was not an unknown actor before the film, it definitely propelled him into becoming a household name.
Unsurprisingly, the outtakes from the film are ridiculous–but then what would you expect from a dynamite cast that included Mike Tyson? And it turns out that the famous boxer had a tough time keeping it together when the cameras were rolling. Of course, Alan (played by Galifianakis) was the star of the bloopers reel, and everybody struggled to keep a straight face when he was dishing out the deadpan humor.