I haven't actually seen the trailer for this at the cinema, though I have seen the trailer on TV a few times. To be honest the trailer didn't make me particularly want to see the film, however due to lack of options me, my sister, and her husband ended up watching it.
The film is a thriller set on an island in Hawaii. A newly married couple Cliff (Steve Zahn) and Cydney (Milla Jovovich) have gone there on their honeymoon. Not long after getting to the remote, isolated island they discover via other tourists, and via the Internet Cliff gets on his mobile that a newly wed couple were murdered on a nearby island by a duo, and that the murderers are predicted to have travelled to the island they are currently on. The pair meet another couple Nick (Timothy Olyphant) and Gina. They decide to stay with them figuring there would be safety in numbers if it did happen that the killers were on their island. However it starts to seem more and more likely by the couples odd actions and stories that Nick and Gina may be the killers.
The films scenery is beautiful; lush tropical forests, beaches, and mountains make the setting a paradise. The film is shot in a really cool way, a flashback later in the film is filmed totally in black and white which works really well at separating it from the bright colours of the present. Also there is some really nifty camera pulls, plus some '24' style screen splits. The cast is quite small, the 4 main characters, plus a handful of secondary characters. Jovovich and Olyphant in particular show really great acting. It wasn't till near the end of the film that I realised the character Cydney was played by Jovovich, as I'm used to her naff acting (eg: the Resident Evil trilogy) so assumed it couldn't possibly be her.