The movie version of bonkbuster book Fifty Shades Of Grey will be aiming for an adult certificate, [uuid=345b3b6c-8f12-4f1d-b702-b2e11693d204]the screenwriter[/uuid] has revealed.

Kelly Marcel has told the Sunday Times that the filmmakers will not be holding back on the raunch as they adapt EL James' best-selling tome for the big screen.
She said they would be aiming for an 18 certificate in the UK and an NC-17 certificate in the US.
And on the subject of the bondage-themed books sex scenes, she commented: "We are 100% going there.
"We did go through and decide which are our favourites and which are not. Most of them are in there, but I can't say more than that."
And she addressed the casting rumours surrounding the project, insisting that nobody was fully on board yet.
"No actor would sign up to a film without a script. That would be insane.
"This thing is very, very closely guarded. There are shredders arriving at my house at this moment, because in LA my trash was gone through. Who is playing Christian, who is playing Ana - seriously, people are rabid about this thing."
The story was picked up by The Hollywood Reporter, and a spokesperson for movie studio Universal commented: "A screenplay has not yet been written, a rating has not been designated and we have no further comment."