Visible crew/equipment: When Francesco and 'she' are in the cemetery together and the little blue flame-beings gather around to watch them, you can see the wires they're suspended on several times. This is most apparent when Francesco sees the first one (moments before seeing 'she' at the fountain) and also just before they are all frightened away. (00:17:30 - 00:20:40)
Visible crew/equipment: When 'she' is lying supposedly dead on the slab and a fly lands on her face, you can see the wire making it move.
Continuity mistake: When Franceso is making love to 'she' in the graveyard and her dead husband attacks, Dellamorte's underwear disappears then reappears between shots.