I've watched this now, and, as expected, it was not anywhere as horrific as your mind expects it to be... Don't get me wrong, it's seriously extreme, but the more people talk/write about the subject matter, and the more you read, the less the effect.
Having said that though, I seriously doubt this will get a mainstream release in it's current form. The newborn aside, the brutalisation of women depicted in this film is too explicit for the BBFC, even if it tries to apply contextual allegory; sexual pornography and the pornography of war; Serbia's violent past played out as entertainment - the atrocities in the film were all detailed realities in the Bosnia-Serbia conflict of the 90's.
And I find the idea of Milosh not being privy to the script also acts as a metaphor for how soldiers during that time were co-opted into performing this violence blindly, and also seemingly willingly.
Right... time to watch "Up", I think... and have a shower...