Visible crew/equipment: As Mario emerges into the house from the rain to get the bodies, a crew member is seen when he opens the second door. (01:04:05)
Continuity mistake: When Frank Hallet first enters Rynn's house, he leaves muddy footprints all over the floor. The footprints are gone in later shots.
Continuity mistake: When Mrs. Hallet goes to retrieve the rubber seals from the cellar, she opens the trap door and the diagonal wood creates "Z" bracing; but in the next shot, as Hallet heads down the stairs, the diagonal wood cross brace is now attached to the door in the opposite direction, making a backwards "Z" bracing. None are flipped shots. (00:27:30)
