Kudos to Russell Crowe for this good movie. Am going to be honest, i wasn't scared althrough neither was i moved by the background effects which i don't find necessary. I respect the fact that it's a historical film. It's not a film i would want to watch again.
SPOILERS:
Most of the acting were poor and too predictable most especially Henry's mother. It looked like there was no bond between her and the children, She didn't act like a mother, she acted like Henry is her patient.
So Henry was being possesed and called out: "mom please help me" and she didn't move an inch nor utter any word until Pope Amorth said to her: "say something, a mother's love never fail" it was then that she said "Henry, i love you" like it was forced.
Few seconds later Henry passed out with 'God is not here' inscribed on his chest and still she didn't act. Henry's sister turned as well and she stood agape. That ain't possible in real life. No mother will stand all that.