wonderland wasnt about the porn industry. it was about whether john holmes did or didnt have anything to do with the wonderland murders. Reviewing all evidence it is fairly obvious he did.
and that movie took place after he was out of the porn industry, and before he died. During the strung out pathetic weakling period of his life.
I dont think that hollywood has any interest in porn per se, just its effect on american culture. just as it does with any dirty little secret, be it porn, drug use, infidelity, etc. Just look at all the drug use in movies.. makes them "edgy", and edgy sells. same goes with porn.
PT Anderson, who made "Boogie Nights" on a shoestring budget, made it as an indie film, It just steamrolled after Mirimax got involved.
Face it, you and I both know that people like porn. Billions of dollars are spent on porn. so obviously there is going to be a movie or two made about the subject.