Wow, at first I was going to say that a scary PG movie is an oxymoron...but after seeing some of the titles listed I know I'm wrong. I honestly didn't know some of those weren't R rated. Jaws was PG? I forgot about Twilight Zone...damn but I feel stoopid.
"And Shepherds we shall be
For thee, my Lord, for thee.
Power hath descended forth from Thy hand
Our feet may swiftly carry out Thy commands.
So we shall flow a river forth to Thee
And teeming with souls shall it ever be.
In Nomeni Patri Et Fili,
Cannibal Holocaust jus kidding but in all seriousness I cant understand how some of these films you've mentioned are pg!? I mean Poltergeist has a gory as hell face scene along with raiders, Grizzly has several limbs being torn off and Gremlins has some blood in quick scenes..... Dont worry I dont support censorship either though.