(Cover) - EN Showbiz - Daniel Craig admits that his gritty new flick is an extremely "adult movie."

The actor stars alongside Rooney Mara in upcoming film The Girl With the Dragon Tattoo.

The film based on late Swedish author Stieg Larsson's eponymous tome follows the exploits of Daniel's character journalist Mikael Blomkvist on his mission to solve a 30-year-old murder with the help of Rooney's character Lisbeth Salander.

With director David Fincher helming the project, Daniel was instantly drawn to starring in the feature.

"Look, I'm a David Fincher fan, so it was an easy choice to make when accepting this film," Daniel told MTV News at the film's New York City red carpet premiere.

"It's a great story. It's an adult movie. The babysitters are going to get, hopefully, a lot of money out of this film. That's why I wanted to get involved."

Daniel was thoroughly impressed with his co-star Rooney's performance. The fledgling actress who has just received a Golden Globe nomination for her work in this film really shined on set.

"We all knew [Rooney] was good. She's just committed as an actress, and she made all of the right choices with David's help and everyone else's help," he said. "She's just blossomed as somebody. As I said, we knew from the beginning that she was good enough it was everyone else who had the problem."

The Girl With the Dragon Tattoo will be released in the UK on Boxing Day. (C) Cover Media