“I did change things. It may not have been as much as some people wanted. But you have a book that’s very specific in time and place and how it represents some things. It’d be challenging to change a lot of things and still have the story work. I understand why you can’t wholeheartedly change the whole thing. I was hired on a green-lit movie, and there’s not a lot of time. You change as much as you can while you’re shooting.”