Blog Number 105 - 'R' rating for Frank Miller's '300'?

I had a chance to pore through the images on Zack Snyder's 'Production Blog' and am pretty convinced that this movie will be 'R' rated. A 'PG' rating would make it more accessible to a larger audience, however, after viewing the image of a sword through the mid-section of a mannequin, this reinforces my belief that Frank Miller's '300' won't be a movie for the younger crowd.