I too saw/watched the same movie
I didn't watch all of it as I couldn't handle the violent nature of it and turned it off.
Next morning I was so disturbed by it I checked out what it was all about,
The basic break down.
Owen went to a "asian" city to take up a job as an engineer only to find out from Pierce that the western world had taken advantage of under developed county by exploiting a high cost of water of which they cannot afford.
hence the civil population rebel against Westies and the Gov
It was filmed in Thailand and depicted backward Kemer speaking Gangs of which painted a very poor image of Thailand and Cambodia, resulting of the banning of the movie in those countries.
I believe they escaped to Vietnam and it ended similar to how Alex depicted his families escape from Russia.
Having Visited all 3 countries (minus Vietnam) I found the movie so disturbing I can see why it was banned.
Yes there is a element of badies in every country including ours.
However with sensible travel plans you will come to no harm there but demonstrate common sense in your travels, or risk death from stingrays, crocodiles and sharks! ... not forgetting Dingoes!