"There's an argument to be made, sure, that the violence in 'American Psycho' was gratuitous," says the author. But he also sees how the book is "a kind of performance art piece and the violence needs to be there."
It's much less fun to release a book these days—with all the necessary Twitter and Facebook promotions—than when the novelist began.
"It's very easy to write a script compared to a book," says the author. A novel is not a logical thing and it doesn't come from a logical place—a screenplay is a focused plan.