The movie itself is good but surprisingly average due to its inability to fulfill the hype that was created around the character of the nun and what can at times be only described as dumb and silly peices of dialogue, along with the lazy plot writing of the nun's backstory, as we can all probably agree that the Knights Templar thing was not necessarly original. Although, the movie does connect itself to the conjuring universe very well, it executes it's jump scares in a cleaver and fun manner and it's aesthetic aspects are in my opinion the best in the conjuring universe so far. Overall, even though the movie may contain some disappointing elements, it still culminates to form a generally fun and good movie.
Review of The Nun
