the shots were taken both in australia which represented "paul's world" (sydney, blue mountains) and in poland where most pictures that featured the parallel world were shot (kraków-częstochowa upland, ogrodzieniec, zawiercie, czocha castle, książ). czocha castle was used as the spellbinder's castle with książ castle serving for certain interior shots. the ruins of ogrodzieniec castle were used as the ruins of the old spellbinder's castle.