Sometimes, you go to a movie expecting full frontal.
Did somebody say it was Limbaugh's fault? If you really wouldn't expect that nudity to come from Lorraine McFly herself, Lea Thompson, then you're also not alone, but that's exactly what you'll get in All the Right Moves.
I recently watched a documentary on the film Deep Throat and was thoroughly blown away by the long lines outside the theaters in the 70's to see a porn film.