Zach Galifianakis and his fellow groomsmen are back in 'The Hangover 2,' which opened this weekend. After the bachelor party that nearly cost their friend his marriage in the original 'Hangover,' the gang jets off to Thailand where they again make a series of poor decisions, this time ending up with a monkey rather than a tiger.

Most fans of Zach Galifianakis, who don't just know him as the fat guy from 'The Hangover' know that he was an underground stand-up comedian before becoming an huge movie star. But considering how far he's come, it's worth remembering that, before Galifianakis was hanging out with A-listers in Southeast Asia, he was a bit character in a Chris Kattan vehicle.