Volver & Other Spanish Movies

So I just finished watching "Volver" with Penelope Cruz. It was a really good movie, and I'm looking forward to seeing more movies by Almodovar. People have told me that he is among the best of Latin directors. I got "All About My Mother" and "Bad Education" to watch this weekend. What I really want to watch is "Y Tu Mama Tambien." I only saw a little of it, and would like to view the complete movie. Also, when I was in Oaxaca, we actually went to the beach that the movie was filmed on. It was amazing. I got "Amar Te Duele" also, but I already saw it in Mexico so I'll save it for last. That was an insane movie; so much going on. They are so free about nudity and about expression. Nudity is an art, not a taboo. What I want to know is, would problems with pornography be better if the United States were more open about nudity overall/in movies?