What is the name of this movie?

I've been trying to find this movie. It was probably came out in the late 80's to the early 90's. It's about a boy who fights with his parents and then runs away. He subsequently finds a gl wall in the middle of a glade, and finds a hole in it. On the other side he finds a whole different world, filled with different types of creatures. He encounters this evil man, who at the end holds him hostage above nothingness (eternity maybe) or a giant black expanse that never ends. The man kidnaps the boys parents and forces them (hypnotizes them) into playing this awful game. The parents lose the game and the evil guy tells the boy that he is going to kill them. The boy escapes and goes back to the other side of the gl wall only to find his house on fire and his parents dead. I saw this years ago and can't seem to recall the name of it.