Oh, what... that's not a shocking revelation? :-)
I remember reading something about this a couple of day ago, but director Jon Favreau confirmed that was the target over at his Myspace Iron Man group.
Why this warrants a post on this site and a hundred other movie sites, I don't know. I suppose it could be due to the big surprise that Fantastic Four: Rise of the Silver Surfer received a PG rating instead of a PG-13.
So now are fans of superhero movies worried that any and all future superhero flicks will get watered down to a PG rating? Just because FF2 received a PG doesn't mean that will become the standard for superhero flicks. The defacto standard for these movies is PG-13. I mean even the fairly wimpy Superman Returns got a PG-13.
There's no chance in hell that Iron Man would be aiming for an R rating, and PG is more suited to Disney family comedies. PG-13 is that middle ground where you can have tons of action and lots of generic, bloodless violence.
Perfect for a superhero movie. :-)
Source: Myspace via Superherohype