saw it over 5-7 years ago, and chances are it is a late 90's movie. I was really impressed with it and the premise stayed with me over the years. However I lost the name. Here's the premise:

There is a reality show about a group of people whose goal is to survive. Think Survivor + Running Man, except it takes place in a completely civilized urban environment. The goal of each contestant is to kill off everyone else and to emerge the sole victor. The movie has a mockumentary feel to it. Contestants are interviewed the way they would be on a real show. Film editing also closely mimics a reality show. The film follows all of these contestants as they struggle to murder each other and not get murdered in return.

I believe it is a Canadian movie. I have totally blanked out its name. Any suggestions would be greatly appreciated