This is by far the only horror film that has actually given me goosebumps and made my heart race since forever. This has also been the only horror film I've been to where the whole audience reacted just like they do in those "real audience reaction" bits they show for other movies, a couple actually walked out which impressed me quite a bit. It does start a little slow but like all movies its just to build up for the main event or events in this case which genuinely are frightful.