 The film was shot in a Spanish mission from the 18th century, which  is believed to be inhabited by at least 12 ghosts. During the shoot  the script supervisor (Elisa Forni (qv)) could never use the  Polaroid camera inside the mission: even though she used the flash  all the photos turned out completely black. She had no problem  taking the pictures outside. During a night take the first shooting  day, the costume designer (Sarah Fleming (qv)) saw a window  unlatch and open on its own.