The obvious film to compare this to is Ken Russell's 'The Devils'. Both films are explorations of cloister depravity and resulting inquisitions. Neither are exploitation movies. 'The Devils' didn't really try and be erotic, it was more a portrait of human insanity from a spiritual dark age. 'Monache di Sant'Arcangelo' has higher moral currency because it is a purposeful exploration of the subjugation of women. There's erotic value of course, but it's not gratuitous. The suppression of human sexuality can of course be used as fodder for Women-In-Prison movies or nunsploitation but also polemically. There is a lot of scope in such movies as this, one example I have seen championed is Jesus Franco's 'Love Letters of a Portuguese Nun' (1977) which is a criticism of Catholic patriarchy. Basically the movie says that the convents are used to house affluent undesirables and heaps upon the hypocrisy of the Cardinal and his vicar. Not that I would say any of the political comment in this movie is particularly trenchant.
Whilst I'm sure that such polemic was one of the main aims of the film, the main success is to be found in the love stories. Indeed it wouldn't surprise me if this movie became some sort of lesbian underground hit, because the dynamics of the relationships in the movie are quite well done. Sister Chiara's obsessive love for example for Mother Julia is very carefully studied: After Chiara is given the cold shoulder in favour of the young initiate Agnes, she takes to self-mutilation and writing poison pen letters about the nunnery to His Eminence. When they are back together again Chiara, even though she realises that the resurrected relationship is likely to be due to Julia's fear of blackmail is content to live the lie. It's clear to me though that Mother Julia felt much regret over her abandonment of Chiara, when they are back together she tenderly kisses the scars on Chiara's knees that were caused by her purposefully kneeling on broken glass. In another scene she feels remorse when she sees that Chiara has deliberately cut herself on the thorns of a bunch of roses. She is also unable to tolerate the torture of her lover. Basically it's the sapphic romance of the movie that really works well. As laudable as the politics of the film are that part of the director's vision lacked pathos. Basically the men in the movie deliver their lines flatly and the scriptwriter didn't appear to have any passion for the politics of the period.
It's always intrigued me to see relationships unimpinged by hidden breeder agendas, to look at unhinged love. This film provides ample opportunity.
It might be of interest to readers to look at the structure of the film, it is really rather like a Jacobean tragedy in many respects. We have the gratuitous and unexpected murder of Pietro, we have the Machiavellian political powerplays and joustings, the immorality of the cast - principally Don Carlos - and the scenes of torture. And then there is the protagonist's monologue, this time delivered by Julia to the inquisitorial priests, quite similar to the repentance of d'Amville from Cyril Tourneur's Jacobean play 'The Atheist's Tragedy'.
'Monache di Sant'Arcangelo' lacks great production values for me. Others will say that they are a cut above other nunsploitation movies and they are right. However this movie is still pretty unpolished compared to other period movies even though it tries very hard. This won't matter to you too much if you are interested in this film because of the dynamics of the relationships. In that sense it is successful as, say, Fassbinder's 'The Bitter Tears of Petra Von Kant'.
I can't give the movie higher than 7/10 however because some of the major set pieces, like a poor soufflé, fail to rise to the occasion.
