Audio problem: In the scene where Erin is climbing down into the well at the plant, and then climbs out and runs away from the workers, she runs to her car, gets in and starts it. The sound of her starting the car is that of her cranking it over once, then trying again. The second time she cranks it over, her hand isn't on the key, its going down to the shifter.
Audio problem: At the end of the film when Joseph reveals himself to his brothers, he says "I am your brother, Joseph." However, if you look at his lip movements, you'll see that he does not say "Joseph."