The Hangover is a 2009 American comedy film, co-produced and directed by Todd Phillips and written by Jon Lucas and Scott Moore. It is the first film of The Hangover franchise. The film stars Bradley Cooper, Ed Helms, Zach Galifianakis, Heather Graham, Justin Bartha, and Jeffrey Tambor. The Hangover tells the story of Phil Wenneck, Stu Price and Alan Garner, who travel to Las Vegas for a bachelor party to celebrate their friend Doug Billings' impending marriage. However, Phil, Stu and Alan have no memory of the previous night's events and must find Doug before the wedding can take place. It was followed by 2 sequels.
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Three buddies wake up from a bachelor party in Las Vegas, with no memory of the previous night and the bachelor missing. They make their way around the city in order to find their friend before his wedding.
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Two years after the bachelor party in Las Vegas, Phil, Stu, Alan, and Doug jet to Thailand for Stu's wedding. Stu's plan for a subdued pre-wedding brunch, however, goes seriously awry.
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When one of their own is kidnapped by an angry gangster, the Wolf Pack must track down Mr. Chow, who has escaped from prison and is on the run.
