Continuity mistake: There are 2 pictures and a mirror visible on the walls behind Carrie Page, just before she tells Cooper to come in. Upon entering, the camera switches to inside her house. Now only one picture, a different one than before, is there. The previous two and the mirror are gone.
Continuity mistake: Overcome by mysterious toxic fumes, Bad Cooper loses control of his car and rolls it on the roadside. The vehicle tumbles but lands upright; and, as it comes to rest, the interior camera shot looking out shows a relatively minor crack in the far left side of the windshield. Camera cuts to an exterior frontal shot looking in at Bad Cooper, and now the windshield is shattered all the way past center, with the left side partially caved-in. Camera cuts back to an interior shot looking out, and the windshield is, again, largely undamaged. Camera cuts back to exterior and the windshield is, again, thoroughly shattered. Another interior shot looking out, again, shows minor damage.