Roel Reine's DRIFTER

I am a sucker for the movies that bring together a group of strangers together and place them in a location where they are unknown to the actual dangers and experiences that lurk in that Particular place (i:e Saw). Here is a movie created by Roel Riene called Drifthttp://www.imdb.com/title/tt0820872/er.
What Reine has done with this by giving 4 people with a big dose of amensia, a alternate reality making it essential they group together to survive.
This movie was actually created in 2007 but is still waiting on a distributor, no details yet of an release.

Synopsis:

Four characters wake in a desert, disoriented and lost with no clue where they are or how they got there. All four have fresh surgical scars and are on the verge of death. As they run desperately through a labyrinth of realities, both past and present, their ties are revealed and they come to see that only one of them will survive.