I just saw Turistas and was expecting a b-flick of sorts, but what I got was much more. Not that it wasn't lacking the Hollywood glamour of some of today's movies, but it was a lot better than I expected. If you like dark movies, then this one's right up your alley. I liken it to The Hills Have Eyes and Hostel ; more so the latter. If you liked either, then you should definitely check this one out. Of course, if you're debating an international trip, you might want to stay away from Hostel and Turistas.
If you liked Turistas, I'd recommend The Hills Have Eyes and Hostel.
The following IE search providers are ones that I use fairly often. Click the respective links to install them. Enjoy!