The 27-year-old plays the late actress, who starred in the first mainstream adult movie Deep Throat in 1972 and went on to claim she had suffered domestic violence from her husband Chuck Traynor.
Amanda says she believes banning porn would not work.
“To each his own really,” she tells Day & Night at the UK premiere in London’s Mayfair Hotel.
“You can’t put a ban on it. I mean, kids under age are still drinking. It’s always going to exist, it’s freedom; we should be free to watch whatever we want.
In terms of how it’s made and produced, there are a lot of issues, some is safe and positive but there’s trouble everywhere.”
Amanda says she wants to play more real-life characters and is avoiding stereotypical choices.
“I want to play real people,” she says.
“I’m an actor, I want to prove that. I don’t think I have an image because I’m playing all these different characters and I certainly don’t do romantic comedy after romantic comedy, because I don’t want to get stuck.”