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To be fair: It is impossible to follow the book word by word.
For example: There is a description of a person dying in agony and crying for help for 2 days and nights... Impossible to put on film.

Be warned: it's a very brutal, very sad movie.

There is a description of a person dying in agony and crying for help for 2 days and nights... Impossible to put on film.

That is true, apart from the fact that it'll be time consuming, I think it might be too gory for screenplay and creating all that effect for it might not really come out too well.