Factual error: The movie starts with "cawing" from a Crow, but shows a Raven perching on a rail. A Raven is easily distinguishable from a Crow by the curve/hook at the end of its beak, which was present. (00:00:13 - 00:00:39)
Continuity mistake: Before Eamon hung his jacket and hat on the nails, there were three nails close together near the right side of the board. When he was hanging his jacket and hat, there were only two nails, which appeared to have more distance between them. When the camera shifted, there were a couple nails protruding to the left of the hat. The single nail that was on the far left side of the board turned into two nails. (00:04:38)
Continuity mistake: Eamon set his radio in the corner of the shelf, actually or practically touching the vertical board/post, but the rear view showed the radio a couple inches away from the vertical post. (00:04:55)
Deliberate mistake: The blades on the tiller or harrow (?) were only a few inches apart when Burkett was falling back onto them, but only one blade went through his chest. Burkett's body was wide enough for at least three blades to penetrate. Also, the blade appeared to be exiting in the center of his chest (along the button line of his shirt), but the close-up showed the blade to his right. (00:19:40)
Continuity mistake: The length of the pole the scarecrow was on varied between close-ups of his face (where the pole did not extend above his head) and wider views (where the pole extended 3-4" above his head). (00:24:40 - 00:25:05)
Continuity mistake: The vent near the attic door on the ceiling moved to the adjacent wall after Hilda was pounding on the attic door. Instead of being parallel to the open doorway (on opposites sides of the hallway), it became adjacent to it and was above the level of the doorframe. A lightbulb/outlet also appeared to the right of the vent. (00:33:02)