Barely passable
Christopher from Galway, 16 Sep 2008
Two incompatible losers meet by chance in Vegas and after a wild night end up hitched. The next morning they realize their mistake but before the divorce they win $1,000,000. A whacky judge makes them stick out 6 months of marriage or forfeit the loot. They try to drive each other crazy to force one to quit and leave the money behind. What we get is a mediocre comedy. The chemistry was absolutely non-existent, the comedy lame, the age difference between slacker and old hottie implausible.

Predictable but has some good laughs
Niamh from Dublin, 22 Jan 2009
Two people go to drown their sorrows in Vegas, have a Ross and Rachel Las Vegas wedding and then the fun starts when they win the lottery and have to stay married to get the money. Hilarious in parts although the two main performances (Diaz and Kutcher) dont add much. Diaz was better in Something about Mary. Predictable but worth a watch on a cold night for some laughs.
Very enjoyable
Tracy from Dublin, 01 Jul 2009
I didn't really know what to expect from this. I thought it was going to be a bit stupid/boring but it is actually very enjoyable and watchable. I thought Ashton and Cameron were both excellent and it's full of laughs.
What Happened in Vegas
James from Sligo, 22 Oct 2008
The usual comedy with a few laughs. Two people looking for a good time in vegas, meet, get drunk and get married by accident. One wins the Lotto and then the Fun begins. Could be much better !!!
meaah
brian from Dublin, 11 May 2009
A few funny moments but put it this way- i wouldnt care to watch it again. Not memorable, no chemistry between two leads. Both leads playing their typical one dimensional characters.