Yeah, I saw the movie of Christine. A lot of the movies from Stephen King's books were crap, but you can see why they'd be more scary in a book. IT, for example, was just funny, but I can tell that it would be a good read. Thinner on the other hand, I'm not so sure about.
I've heard of Marathon Man, but didn't know anything about it. Perhaps I'll have to check that one out.