Mini Fincher Interview
"I don’t think anybody made this movie in spite of their instincts," Fincher said. "I think they made it because of their instincts. People spent [money] to make this movie because they believed in the story, because it's a gripping yarn and because they believed there was something at the end of it. Although I’m sure there’s a lot of people who would have rather seen it at two hours and seven minutes."
Also Phoenix Pictures senior vide president of productions, Brad Fischer says this about Fincher's meticolous research for the film:
"He [Fincher] said, 'What I'd like to do is go out and talk to all these people who are still alive — the cops, the journalists — and figure out he
chronology of events.' We did about a year of research with Fincher because of his desire for authenticity," Fischer says. "We visited all the murder sites, met with everyone involved, including Robert Graysmith. It was a long and arduous process, and a fascinating process".