At times, this feels like a slightly milder version of Peter Berg's generally reviled Very Bad Things , a 1998 black comedy also about a Las Vegas bachelor party gone grotesquely awry.
This is the customary set up for a bachelor-party-gone-haywire comedy, in the style of Peter Berg’s equally-ludicrous Very Bad Things, followed by the flashback to two days ago.
The box office success of The Hangover puts into interesting context another movie about a bachelor party that goes wrong in Las Vegas.
But this is a comedy — or it’s meant to be — and as much as I would have loved for the sense of the sinister inherent in this concept to turn into something deeply, blackly funny (I’m thinking of Very Bad Things as a possible precedent for this, but The Hangover is never so audacious), Lucas and Moore and director Todd Phillips (School for Scoundrels, Starsky & Hutch) go for the easy, cheap laughs, things that will shock a juvenile mindset — a mother breastfeeding?
This is not a dopey/sweet Vegas comedy, like the bland What Happens in Vegas, or a nasty/nihilistic one, like the putrid Very Bad Things (both of which, now that I think about it, starred Cameron Diaz).
The remaining three men spend the next day and a half trying to piece together exactly what the hell happened during their long blackout, and this is where Jon Lucas and Scott Moore's beautifully constructed screenplay really shines; instead of a blow-by-blow orgy of decadence, a la Very Bad Things, it's laid out like a murder mystery.