The Hangover (2009)

The Hangover happens when Doug (Justin Bartha) goes to Las Vegas with his closest friends Phil and Stu (Bradley Cooper and Ed Helms) and his future brother-in-law Alan (Zach Galifianakis) two days before his wedding for a blow-out bachelor party they swear they'll never forget.

The three groomsmen, however, can't remember anything when they wake up the next morning with crushing headaches. Their opulent hotel suite is in shambles, and the groom is nowhere to be seen. With no idea what occurred and little time to spare, the three must try to retrace their stupid decisions from the night before to figure out where things went wrong in the hopes of finding Doug and returning him to L.A. in time for his wedding. But the more they discover, the more they understand how much danger they truly are in.

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IMDb: 7.7
Genres: Comedy