'Fifty Shades of Grey's' Charlie Hunnam: Dakota Johnson and I have 'tangible chemistry'

charlie-hunnam-dakota-johnson-fifty-shades-petition-gi.jpg Charlie Hunnam ("Sons of Anarchy") and Dakota Johnson ("Ben & Kate") are the controversial casting choices for the leads in the "Fifty Shades of Grey" film adaptation of E.L. James' best-selling novel. But Hunnam says fans do not have to worry about their on-screen spark.

"As soon as we got in the room and started reading with Dakota, I knew that I definitely wanted to do it, because there was a tangible chemistry between us. It felt kind of exciting and fun and weird and compelling, and so that was it," Hunnam tells reporters at the "Sons of Anarchy" Season 6 premiere.

"I went and read the first book the get a clearer idea of who this character was, and felt even more excited about the prospect of bringing him to life," Hunnam adds.

He also says he did talk to his girlfriend, Morgana McNelis, a jewelry designer, before he accepted the role.

"It's very hard to be with an actor. She's required to share parts of me that she wouldn't really want to share," says Hunnam. "With the nature of this role, that's going to be times 10."

"[But] she loved the books. She read them and loved them and was really excited about the potential of the opportunity for me. If anything, I think it will make us closer," he adds.

"Fifty Shades of Grey" is scheduled for an August 2014 release.
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