I don't remember a whole lot about this movie. All I remember it was a scary movie that I watched in the 80s with these evil neighbors, and this kid was pushing this other kid on a swing and pushed the kid so hard she or he fell off a cliff. That's all I remember, please help.

Possibly American Gothic (http://www.amazon.com/American-Gothic-Rod-Steiger/dp/6301058283) from 1988.

Maybe The Good Son (http://www.imdb.com/title/tt0107034/)?

The good Son, REALLY doesn't sound like a Horror Movie :D

The good Son, REALLY doesnt sound like a Horror Movie :D
LOL, yeah, ironic isn't it? But it is, I double checked, too, IMDB lists the genre as horror-thriller. It was pretty scary. When the kid threw "Mr Freeway" off the overpass into oncoming traffic I totally freaked!