The few horror movies I've see are always either scary or what I call "disturbing scary", 3 that fit in that category are:
1) Drag Me To Hell- saw this at one time, never watched it again, couldn't handle the gory parts.
2) Halloween remake- The beginning was so disturbing, just thinking a kid could do that, ugh *shudders*, the movie went downhill after he grew up.
3) Black Swan- this definetly falls under the "disturbing scary" category. One of the most disturbing was her peeling the skin off her finger. That one really made me cringe.

But there probably are some but I just can't seem to recall.
-There was one part in particular where I did jump/shake. I still feel uneasy whenever I think about it.