Vagabond wrote:

"Disclaimer: Most of this is supposition and inference.

You have to bear in mind that a PG movie only prevented kids from going in by themselves. A lot of adults still brought little kids into PG movies. As a result, anything that wasn't suitable for young kids - like, say , a guy having his heart ripped out before he's dropped into a pit of lava - tended to get movies an R.

Lucas & Speilburg knew that things like that were a little too heavy for little kids, but that teens would love them. And teens were a huge part of their target audience. So the point seems to have been to create a rating for a movie that it was all right for teens to go to, but little kids should avoid.

------------------
11 November - LEST WE FORGET

""It starts! It runs. It goes. It goes fast! It turns. It doesn't turn!!""
-Red Green, The New Red Green Show"