The original version ran 100 minutes. This was with the short ending that didn't include the explanatory "Other World Sequence" (which wasn't finished at the time of the film's initial release). After the original ending didn't work, the filmmakers re-cut it, adding the special effects sequence in which the viewer sees the other world that the victim was trapped in. This ending still didn't fare well with the critics, so
Vincent McEveety was brought in (director
John Hough was unavailable) to tweak the film and shoot an entirely new ending and opening credits sequence.
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