To be or not to be pg 13

I am new here and not sure if this topic is or has been covered but i am delighted at the news of a new Ridley sc fi blockbuster my only concern for Prometheus is the pg 13 rating thats being banded around as the most likely certificate for this movie. I was 13 when the original masterpiece came out and i was fortunate enough to see it on a private projection at a youth club of all places. I hope and pray that Sir Ridley dosen't succumb to studio pressure from fox and dumb down the story in terms of thrills and chills to become a sandwich box marketing gimmick in order to put bums on seats. Of course with the kind of money at stake in these ventures its inevitable that Some concessions have to be made to recuperate the financial cost and make hopefully good returns but not at the expense of the fans expectations unless of course you happen to be a fan of avp . I guess i'm just hoping that Ridley's integrity is not compromised and he delivers the savage nasty thrill ride that has brains, braun, and the balls we know he's capable of delivering.