Continuity mistake: The laceration near Ryan's right eye extends into his cheekbone but it is much shorter and looks closer to his eye several minutes later. (00:08:30 - 00:13:55)
Continuity mistake: A full moon was shown, but it was quite dark even around the campfire. When the man came and said there was something in the field, the sky was black. About a minute later when Cameron tripped/fell, there was (moon) light near the ground. (00:16:09 - 00:18:19)