Several odd and kind of creepy things disrupted the filming of this Invocation scene, in which the girls are using actual Wiccan invocations:

- A flock of bats descended on the group, extinguishing the candles.

- Several times while trying to begin the scene, waves suddenly rolled up the beach in full force.

- In one take, when Nancy says, "Manon, fill me," the crew lost power.

(via)