Movie of 2 friends being hunted by the dead

Tools    





So trying to find this movie. I think it was made in the 90's possibly early 2000's Basically it's 2 friends running away from ghosts/dead on this reserve I think it was. There is one ghost that helps them though. He helps them to a certain point to escape the others hunting them but then says I can't go any further from here. As the 2 friends go to continue on the ghost stops one of them and says you can't go any further either because it turned out he was dead the whole time and it has a flashback to the start of him running away from the dead and he trips rolls down a hill hits his head and dies but he instantly gets back up as a ghost and continues running without realising he's dead.