It seems that studios are pushing the envelope more and more until now we are starting to see down and out "sex" on the screen. Take for example the new movie The Dreamers that 20th Fox decided to show "as is" without making it an R rated feature. Or the movie Intimacy which is out on DVD and apparently Universal distributed in Europe? that shows straight forward sex acts in progress. I am not sure if either are ground breaking but can anyone else come up with other mainstream movies, possibly earlier, that broke the mold that shows people doing the nasty including all of their private parts? Again I emphasize mainstream (straight or gay) and not porn movies.