@boomerang,
Have you considered any horror films that weren't made in the past decade? Get a film that was made before the 1970s and you can be pretty sure that it won't contain a whole lot of gore or bad language. I know some of the young folk have no patience for black-and-white movies, but if your wee one is of a superior sort then maybe you could expose him to
The Bride of Frankenstein or the original
King Kong. Who knows, he might even appreciate the fact that they're very good movies.