The movie starts with an "art" movie where a man recommends Linda Lovelace because she can do deep fellatio and we see some of that. It goes on to talk about the political, criminal, religious, and social groups who try to get porn, particularly Deep Throat, because it made so much money, out of the theatres. I was surprised that the prosecutor still thinks porn is bad, but I suppose I shouldn't have been.
Partway through, Linda says she was constantly threatened and abused by her then-husband. That was hard to beleive considering how she acted when she was away from him and being interviewed. She doesn't mention it in her first two autobiographies. Then she's co-opted by Susan Brownmiller and Feminists Against Pornography and writes two more autobiographies, which is where she brings up the abuse. Wikipedia says there are witnesses, but many people don't beleive them. Near the end of her life, she claimed that both the porn film makers and the feminists screwed her because they didn't help her financially.
The motivations and mechanisms of the porn industry, and everybody against them, made this a very interesting movie.