DARK AMAZON is yet another BLAIR WITCH rip-off, albeit one made with a south-of-the-border setting. The back story is mildly interesting, incorporating the search for a cure for cancer, but the execution is strictly pedestrian. Once again a group of non-interesting characters and their guides head off for an expedition into unexplored territory, only to find themselves menaced by some snarling, unseen creature in the dark. It's a familiar play-out with the expected shaking camerawork and scares, and one that barely raises an eyebrow, let alone the pulse.