<P> Additionally, Patrick Wilson, Vera Farmiga, Christof Veillon, and Lili Taylor appear in archive footage from The Conjuring as Ed and Lorraine Warren, the older Maurice Theriault, and Carolyn Perron, respectively . </P> <P> On June 15, 2016, Warner Bros. Pictures and New Line Cinema announced The Nun, a spin - off film to The Conjuring 2, which had opened five days earlier . Peter Safran and James Wan produced . The initial script for the film was written by David Leslie Johnson . On February 17, 2017, it was announced that Corin Hardy had signed on to direct The Nun with a new screenplay from Wan and Gary Dauberman . During the filming of Annabelle: Creation, Safran revealed that The Nun would chronologically come first in The Conjuring Universe, making it a further prequel to The Conjuring series and Annabelle series . He said, "We have a board that we created that has what we hope will ultimately be our series of movies . We have it in chronological order, so we can keep track of where it all happens ." </P> <P> On April 5, 2017, Demián Bichir was cast in the film, as a priest investigating a nun's mysterious suicide . Taissa Farmiga was cast shortly after, as a Roman Catholic nun in her novitiate . Corin Hardy later said that he initially did not want to cast Farmiga due to her being the sister of The Conjuring star Vera Farmiga, but changed his mind when he saw her auditions, "I watched 100 auditions for this role and she had some kind of presence outside of her own body that is evident, and she's phenomenal ." Bonnie Aarons was then set to reprise her role as the "Demon Nun" character Valak from The Conjuring 2 . Charlotte Hope, Jonas Bloquet, and Ingrid Bisu were subsequently announced to star, rounding out the main cast . </P> <P> Principal photography for the film began on May 3, 2017, at Castel Film Studios in Bucharest, Romania, with Maxime Alexandre serving as cinematographer . Film director Corin Hardy had a Roman Catholic priest bless the set prior to filming . Scenes were filmed in the Palace of the Parliament building in June, for a fee of € 5,000 per hour . Filming also took place at the Corvin Castle in Hunedoara and in Sighișoara, Transylvania . Hardy saw a handprint in the dust while filiming in Mogoșoaia, which he believed to be that of a ghost . Hardy announced on his social media accounts that production had wrapped on June 23, 2017, after 38 days . </P>

Who is the nun in conjuring 2 movie