'Fifty Shades of Grey's editor thinks the movie wasn't raunchy enough.

Dakota Johnson and Jamie Dornan

Dakota Johnson and Jamie Dornan

Anne V. Coates, 90, who worked on the movie adaptation of E.L. James' erotic romance novel, admitted that the film wasn't as racy as the book and thinks this was a mistake.

She told The Hollywood Reporter: "I thought it could have been a little more raunchy myself.

"Creatively, it was quite interesting because they were trying to get as sexy as they could and get an R rating. So we were very delicately going around some of the scenes."

Meanwhile, writer Kelly Marcel recently revealed she will never watch 'Fifty Shades of Grey' because the changes author E.L James made to her script left her heartbroken.

The 41-year-old screenwriter and actress refused to see the film after the pair clashed while penning the script.

Kelly insists seeing the film - which was released in February and stars Dakota Johnson and Jamie Dornan - would be too painful as it is "much different" to the one she had originally imagined.

She explained: "My heart really was broken by that process, I really mean it. I don't see it out of any kind of bitterness or anger or anything like that. I just don't feel like I can watch it without feeling some pain about how different it is to what I initially wrote."