Been trying for a while to find this. I rented it with a friend in 2005 or 2006.
All I can remember is it was poorly made and had a lot of continuity mistakes such as a characters beard changing lengths in the same scene. There was also a scene with a mad chained up like a dog as somebody ate a meal, if my memory serves me right.
I’m sure it was set on an island, I can remember a scene with a grassy hill and two men walking down it. We rented it from blockbuster