Good list, I however look at horror a bit differently
To me a horror movie should be either creepy or scary.
movies older than 2000 <- its just to old to scare :)
alien <- more action than horror
sweeney todd <- isnt that a musical, like with singing?

Iv seen all excepth Audition & Thirst (vampire movie so it seams), like blade with wesley, I would also say action there.

but deffinently a nice list, some of my favourites are there