The audience is smart and catch on pretty quick when they are sold the same old thing.
For me, it's very easy to write a horror movie that's just a succession of scary sequences, but it's hard to find horror movies that have a genuine theme to them that are really exploring some aspect of our psychology and our fears.
I've watched 'Ringu' probably three or four times before writing the first draft of 'The Ring.' And then I'd seen 'Ringu 2' I think once.
One of the difficult things of making a horror sequel in general is because the horror genre is so founded on surprise.
The movies that will truly be successful will feel different than the movies of the year before.