Zach Galifianakis, Ed Helms, Bradley Cooper
Everyone loves a good bachelor party, but more often than not, they get a little too crazy or out of hand. In The Hangover (hitting theaters June 5), three groomsmen take their buddy to Las Vegas to say goodbye to singlehood. After a night of drunken debauchery, the guys wake up to find that something is missing — the groom. In honor of the new comedy's arrival, we looked back at some of the big screen's most hilarious bachelor parties.
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