The Hangover (2009)

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.

Director: Todd Phillips

Cast: Zach Galifianakis, Bradley Cooper, Justin Bartha, Ed Helms, Heather Graham, Sasha Barrese, Jeffrey Tambor, Ken Jeong, Rachael Harris, Mike Tyson, Mike Epps, Jernard Burks, Rob Riggle, Cleo King, Bryan Callen, Matt Walsh, Ian Anthony Dale, Michael Li