Boom mic visible: After the newlyweds depart the church, they are driving down a country road. Just as they are about to pass a mysterious alien figure, the shadow of a boom mic can be briefly seen on the road as the camera traverses with the motion of the vehicle.
Plot holes: The plot assumes that men who have recently had children have to be human, but they may have been possessed after the conception.
Crew or equipment visible: As Marge leaves Captain Collins' office after her second plea for help, the shadow of dollying camera equipment is visible on the wall and floor.