If you havent read the book but seen the film I can say only one thing. PLEASE READ THE BOOK ITS EXCELLENT, much better than the film I had to read it in the daytime though its much much scarier than the film.
Regarding the film, its ok the best thing about it is part 1 the child actors are excellent, part 2 with the adults is worst bit. saved only by the wonderful Tim Curry as Pennywise. If they remake this it will be difficult (unless they coax tim back to do it) to see another actor pull of this role so brilliantly.
"they all float down here"