Continuity mistake: At the end when Dana fell off the roof, notice the scars on her face when she rolls off what used to be the Djinn. At first, they are simple scratches. When she gets to the roof of the building to find her boyfriend, the scars are deep scrapes. Then in the final shot they are back to simple scratches again.
Continuity mistake: When Abuelo and Paul are struggling in the water-filled house, Abuelo forces Paul's head into a dirty toilet. Later in the same scene, the toilet is completely white.
Continuity mistake: When Kim is being chased through the woods by the attacker, she finally notices a shelter in the distance and runs towards it. As she stops in a clearing closeby, she is suddenly faced by the attacker who stabs her in the stomach with a machete. In the shot her right backpack strap has fallen off of her shoulder and is down to her elbow. But in the next shot of her falling backwards to the floor, the strap is suddenly back on her shoulder. (00:25:20)
Continuity mistake: When Jan is killed, her friend trips over with the scorpion's leg turning around about to fall, but the shot changes and she is perfectly still, and couple seconds later she turns around.