Todd Haynes's first, hugely successful Hangover caper was innovative, crude and funny, the lead characters – decent Doug (Justin Bartha), indecent Phil (Bradley Cooper), unhinged Alan (Zach Galifianakis) and neurotic Stu (Ed Helms) – were obnoxious but still endearing, particularly Helms's bullied dentist.
But Haynes's inevitable sequel is dismal, regurgitating exactly the same plot but transferring the drunken, drugged antics to Bangkok rather than Las Vegas. Stu plans to marry his Thai girlfriend in Thailand and is determined that nothing goes awry. But, charged with looking after his future wife's little brother, they (as last time) misplace him. Bill Clinton, Liam Neeson, Paul Giamatti and Juliette Lewis provide cameos for this dross.