As already well noted, this is a very well crafted film that captures and portrays some of the lowest possibilities of human endeavour. The movie has it's flaws, but drawing empathy from the viewer is not one of them and this it does so well that I was emotionally exhausted by the end of it.
The religious dimension of the film is an interesting one. Clearly people wanting opportunity for anti-Catholic or anti-religious diatribe would find plenty of fuel here, but I think the more reasonable viewer (religious or not) would see the issues raised for what they are - a perversion and distortion of Christian faith perpetuated and maintained by flawed institutional systems. In this vein, it's not necessarily an anti-religious film and not even anti-establishment as such, but it does show a terrible side of those things and, moreover, illustrate how human beings can take any ideology, belief system etc. and turn it to meet their own personal sadistic and evil ends.
A sad and horrible film and one that reminds us all of what not do to, how not to treat people and how we should be ever vigilant as a society against evil and cruelty no matter the guise it takes.
