I too have advised people close I know to avoid watching, I had no idea what to expect before viewing apart from it was would be violent and revolved around a porn actor.
As went through the film I was completely stunned, at times just in a trance and kept watching out of curiosity and the storyline.
Even though I knew it was all fake it really did hit me and I felt for the characters.
I'm sure they'll be some frenzy soon in certain parts of the media regarding the film.
The film will most certainly give the director a name i'm sure! I don't know if it should have been made or not either and probably doesn't do Serbia any favours, especially after the atrocities that went on during Bosnia/Serbia war.
I'd say this is the most extreme film i've seen apart from the likes of Traces of Death which showed real life stuff, going through the thread i've seen most other films listed and was nowhere near shocked although fast forwarded the rape scene in irrerversible. god knows who the next film will be like that trumps it extreme wise.