"THE HANGOVER is surprisingly clever as well as R-rated rowdy....Helmoer Todd Phillips grabs attention right from the get-go with an edgy-funny prologue that triggers an extended flashback."
Variety - Joe Leydon (05/24/2009)
"[A] piercingly funny, twisted 'whatever-happens-in-Vegas' caper....It's the deadpan comic timing of director Phillips and his terrific cast that's ultimately responsible for THE HANGOVER's lasting effect."
Hollywood Reporter - Michael Rechtshaffen (05/24/2009)
4 stars out of 5 -- "Todd Phillips has directed a nasty, brutish and brilliant comedy for louts..."
Box Office - Amy Nicholson (05/29/2009)
"Zach Galifianakis makes blinkered idiocy a cartoon rush..." -- Grade: B
Entertainment Weekly - Owen Gleiberman (06/12/2009)
3.5 stars out of 4 -- "THE HANGOVER is a funny movie, flat out, all the way through....Here is a movie that deserves every letter of its R rating."
Chicago Sun-Times - Roger Ebert (06/03/2009)
"What makes HANGOVER so funny is watching these hapless fools trying to piece together a lost night, forensic clue by forensic clue
Washington Post (06/05/2009)
3 stars out of 4 -- "THE HANGOVER proves that high concept, done right, can work deliriously well. Its simple premise, executed via an off-kilter narrative structure, is made even more absurdly funny by an offbeat cast."
USA Today - Claudia Puig (06/05/2009)
"[T]here is a sort of perverse brilliance or brilliant perverseness to be found in this story of a bachelor party gone terribly wrong."
Los Angeles Times - Betsy Sharkey (06/05/2009)
"[O]ften very funny. This is partly thanks to the three principal actors, Bradley Cooper, Ed Helms and Zach Galifianakis, who incarnate familiar masculine stereotypes in ways that manage to be moderately fresh as well as soothingly familiar."
New York Times - A. O. Scott (06/05/2009)
"There's definite chemistry there between Ed Helms, Bradley Cooper and Zach Galifianakis. The script is a dream for a comedic actor, filled with opportunities for all three leads to shine, and all three do."
Movieline - Movieline Critic (06/03/2009)
4 stars out of 4 -- "[A] very funny and fast-paced detective story."
Premiere - Rob Calvert (06/04/2009)
4 stars out of 5 -- "[T]here's oodles of verbal humour...Jon Lucas and Scott Moore's inventively profane script missing few opportunities to tickle the funny bone as it charts the deranged aftermath of the ultimate Sin City stag night.
Total Film - Neil Smith (06/09/2009)