Fantastic adaptation of a brilliant book that I'd always considered to be unfilmable.

Yes it's a difficult watch, but the intensity of the performances helps you through. The only reason I haven't given it ten is, compared to the book at least, at times it lacks a little subtlety but I can understand why as they needed to attract as wide an audience as possible for what is undoubtedly a tough sell to the mass market.

A good example is the scene of the actual 'incident' itself - while nothing is actually shown in violence terms I still felt it was more powerful without it - by that point everyone should know exactly what happened, without seeing it, and it felt a little like they were pandering to people whose attention had maybe wandered.

It's a minor nitpick though, as on the whole the film is a masterpiece of subtlety as it slowly reveals itself in all it's gut-wrencing horror. Essential viewing for all lovers of film, and even all prospective parents!

There's no twist at the end though!