Continuity mistake: When Max, Isabel, Liz and Maria meet up in the woods after they left the camp site to go to the crash site Max and Isabel walk off and leave Liz and Maria on their own. Max walks past a tree but when Liz and Maria catch up Max is standing next to the same tree waiting for them.
Continuity mistake: In the trailer park, when Michael sees River Dog he is outside his home and standing next to a table. As he walks toward River Dog, he passes a brightly colored car. In the shot as he reaches River Dog, he's approaching from a completely random location between trailers, nowhere near the entrance to his home or the car. No time has elapsed; River Dog is still in the same place relative to his surroundings. (00:11:30)Phoenix