What a waste...
This movie is based on a movie that is supposedly based on true events. The recordings that we here (the ones that have no video and no translation) are real. The supposedly are recording from an exorcism that took place in the 1940's and the girl has the same name as the girl in this film. Much of the video is based off the movie "The Exorcism of Emily Rose".
Acting is horrible and almost laughable at times, even though the very beginning of the movie says that it's all true. They follow a "Paranormal Activity" filming style (dialogue leading up to an event, recording of the event, next day or several days later). I seriously think someone watched these two movies and then wrote a mashup. This is complete *beep* in all its glory and a complete waste of their $100,000 budget (must have been spent on that leisure suit).
If you were thinking about watching this, please don't. It's bad enough that I had to. I hope to save you the trouble.