However, producer Dana Brunetti hopes to release a racier version which will have a strict over-18s only policy.
"What we're kind of hearing is that they (the fans) want it dirty, they want it as close to the book as possible. We could release the R-rated version, which everyone will enjoy, and then for those fans who want to get a little gritty we could release an Nc-17 (over-18s only rating) version a few weeks later.
"That is my idea, but the fans and the studio will benefit from the double dip. We do not want this film to be seen as mommy porn, we want to keep it elevated but also give the fans what they want," said Brunetti.
The movie, which stars Northern Irish actor Jamie Dornan and Dakota Johnson, is set for release in 2015.