Linda Blair has shared that she thoroughly enjoyed making this film. She added that she experienced a lot of stress making The Exorcist (1973) and appreciated getting the opportunity to spoof it.
When producers first came to Linda Blair with the script, she said it would only work with someone like Leslie Nielsen. The producers signed him up three days later.
After seeing an early cut of the film, Leslie Nielsen insisted more farts be added in post production. This is why the film opens with a loud fart.
When Father Mayii (Leslie Nielsen) is speaking to the class, sitting in the front row dressed in a different outfit with her hair done differently and wearing glasses, is Linda Blair, playing another role in the film.