Most porn stars probably don't fall into the "most physically attractive women imaginable" category, you're right. But you certainly can find pornographic video

Most porn stars probably don't fall into the "most physically attractive women imaginable" category, you're right. But you certainly can find pornographic videos with extremely attractive women, if you look for them. Of course the camerawork and editing makes a difference too. Nowadays there is quite a lot of well-produced porn on the internet and some porn stars do look like your "movie/pop stars".