Dakota Johnson says she knew she wanted to play Anastasia Steele in Fifty Shades of Grey even before she read the popular erotic novel trilogy.
Her resolve only strengthened once she had a chance to.
"I just really understand it," Johnson said of the coveted role she's been given. "I think it's an incredible love story, and that's why it's affected so many people."
"Erica [author E.L. James] did a really good job of explaining how that can happen, you have this chemical pull to someone. The sex makes it perfect."
"Sometimes you feel a little bit naughty, and that's okay."
The actress, whose parents are Melanie Griffith and Don Johnson, says no one except her boyfriend, actor Jordan Masterson, knew she was even up for the part.
When Dakota Johnson got the role, she was at a friend's apartment. "The phone rang, and I remember looking out of this apartment to an apartment across the street."
"And I was looking at all of these people in their windows. And I thought, 'How funny would it be if I were watching people having sex right now?'"
"They said, 'You got the offer,' and I couldn't speak," she continues. "I was just so relieved. I was crying and crying. Water was literally squirting out of my eyes."
"And there's this giant Doberman Pincher laying on the bed next to me. And he just slowly fell asleep. It was so special and [this dog] didn't give a f--k about me."
A lot of people will give a f--k about her role as the student who begins a sexually adventurous relationship with billionaire Christian Grey (Jamie Dornan).
The release of the much anticipated Fifty Shades of Grey movie has been pushed back to February 2015, but production begins next month in Vancouver.
Dakota Johnson as Ana Steele: Good choice?