When three friends finally come to after a raucous night of bachelor-party revelry, they find a baby in the closet and a tiger in the bathroom. But they can't seem to locate their best friend, Doug – who's supposed to be tying the knot. Launching a frantic search for Doug, the trio perseveres through a nasty hangover to try to make it to the church on time.
Elenco: Bradley Cooper , Ed Helms , Zach Galifianakis , Justin Bartha , 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 , Sondra Currie , Gillian Vigman , Nathalie Fay , Chuck Pacheco , Jesse Erwin , Dan Finnerty , Keith Lyle , Brody Stevens , Todd Phillips , Mike Vallely , James Martin Kelly , Murray Gershenz , Andrew Astor , Casey Margolis , Ken Flaherty , Joe Alexander , Constance Broge , Sue Pierce , Floyd Levine , Robert A. Ringler , Britt Barrett , Chauntae Davies , Alisa Allapach , Nicholas Furu , Angelica Flameno , Lily Winn , Katerina Moutsatsou , Faleolo Alailima , Rio Ahn , John Bailey , Bart Blackburn , Jordan Bobbitt , Guile Branco , Joey Brander , Michael Bravo , Kaitlin Clark , Natalie Cohen , Matthew Corbett Davis , Cody Deal , Lanette Fugit , Charlene Geisler , David Hill , Mitch Holleman , Brian Irvin , Ty Izquierdo , Brittani Jenee' , Carrie Keagan , Niko Koshet , Dov Markowich , Stephanie Mathis , Anthony Mingilino , April Montgomery , Roy C. Peterson , Alex Pulido , Richard Reid , Joan Riegert , Rachael Riegert , Michael A. Rizza , Heather Roop , Joe Satriani , Fran Severini , Jessica Simons , Tom Spano , Scott 'Carrot Top' Thompson , Jaira Valenti , Ryan Van de Kamp Buchanan , Yvonne Vera , Victor Yerrid , Anat Gerber .