I think that just comes with the medium. Books, by their very nature, use your imagination to create the effect of the story, whereas movies show it to you just as it happens. I have come across several violent/gory passages in books that have seriously disturbed me (like A Tale of Two Cities and Lord of the Flies), but generally it doesn't bother me as much as it would if I actually saw it happening visually in front of me.
For example, I could read a passage about someone gouging someone's eyes out and go, "Ew ew ew!!!" But then if I saw that in a movie (as I did in the director's cut of Blade Runner), that would seriously freak me out and haunt my memory for a considerable amount of time.
You can find out things about the past that you never knew. And from what you've learned, you may see some things differently in the present. You're the one that changes. Not the past.
- Ellone, Final Fantasy VIII
"There's a difference between maliciously offending somebody - on purpose - and somebody being offended by...truth. If you're offended by the truth,
that's your problem. I have no obligation to not offend you if I'm speaking the truth. The truth is supposed
to offend you; that's how you know you don't got it."
- Brad Stine