Director David Fincher is talking about Rooney Mara's bisexual character in the film The Girl with the Dragon Tattoo.

In the film, which opened last week, Mara plays bisexual computer hacker Lisbeth Salander opposite Daniel Craig.

Fincher used Salander's sexuality during an interview with as an example of how producers referenced the original Swedish book in the making of the film.

“We start with the source material. We start with the book and [Salander's bisexuality] is what the book described. I didn't feel there was any need to put a frame around it. One of the things we were very particular about was when she meets Miriam Wu in the bar. We wanted that to be a moment of happiness. There are two times that you see her smile in the entire movie and one of them is when is she gets the attention of Elodie [Yung] and Elodie comes over to kind of say, 'Why are you here alone?' I thought that was important. I also think that Salander's sexuality is less of [an] ambidextrous thing than it is something that she has to act on. I think the tragedy is that friction is not a problem for her; intimacy is a problem for her. I know that, to me, was the important thing to show,” Fincher said.

Mara has been nominated for a Golden Globe for her performance in the film.