Factual error: When Ellen gets married in 1907 she is 20, but when she disappears in 1950 she is 70.
Continuity mistake: On the part where Joyce is arguing with Professor Miller (where she cuts her finger) watch her shoulder. As the cameras goes from her to Professor Miller, her purse strap keeps coming and going.
Continuity mistake: When Steve hits redial on the cell phone it goes to Professor Miller's office, but the last number he called was his cell phone.
Factual error: When the door slamming cuts off Emery's fingertips, there's just bloody stumps with dried blood left when blood should be spurting out.
Other mistake: Joyce is always wearing fresh lipstick regardless the time of day or early morning at wake.
Other mistake: When Emery awakens from his nightmare his clock reads 1:20 a.m. But in the following shot, a grandfather clock in the hallway strikes 2am, but its hands are at 12:00 am.
Visible crew/equipment: When Emery encounters the two female ghosts in his kitchen, a wire is visible above the shorter ghost, for no apparent reason.