Jamie Dornan has revealed that he did not film any "gratuitous" full-frontal nudity scenes for Fifty Shades of Grey.

The hotly-awaited movie adaptation of EL James' erotic novel stars Dornan in the lead as BDSM-loving billionaire Christian Grey, with Dakota Johnson playing infatuated student Anastasia Steele.

But despite the notoriously racy books, which have sold more than 100 million copies worldwide, plenty will be left to the imagination.

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Sorry to disappoint, but this means one thing: "There were contracts in place that said that viewers wouldn't be seeing my, um, todger," Dornan told The Observer.

"You want to appeal to as wide an audience as possibly without grossing them out. You don’t want to make something gratuitous and ugly and graphic."

Dornan added that "very bright" director Sam Taylor-Johnson might have gone for a "suggestive" approach but he has yet to watch the film himself.

Shape Created with Sketch. Fifty Shades of Grey film stills Show all 24 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. Fifty Shades of Grey film stills 1/24 Fifty Shades of Grey film stills Dakota Johnson and Jamie Dornan as Anastasia Steele and Christian Grey during a Fifty Shades sex scene Chuck Zlotnick 2/24 Fifty Shades of Grey film stills Dakota Johnson and Jamie Dornan kiss in a lift as Anastasia Steele and Christian Grey's love affair takes off Chuck Zlotnick 3/24 Fifty Shades of Grey film stills Jamie Dornan as Christian Grey outside Grey Enterprises in Fifty Shades of Grey Chuck Zlotnick 4/24 Fifty Shades of Grey film stills Anastasia Steele with Christian Grey in his offices in Fifty Shades of Grey Chuck Zlotnick 5/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson as Christian Grey and Anastasia Steele in her hardware shop 6/24 Fifty Shades of Grey film stills Fifty Shades of Grey has just under 20 minutes of sex scenes Chuck Zlotnick 7/24 Fifty Shades of Grey film stills Anastasia Steele (Dakota Johnson) with her mother Carla (Jennifer Ehle) in Fifty Shades of Grey Chuck Zlotnick 8/24 Fifty Shades of Grey film stills Sam Taylor-Johnson, Jamie Dornan and Dakota discuss the filming of Fifty Shades of Grey on set Universal 9/24 Fifty Shades of Grey film stills Oscar winner Marcia Gay Harden stars as Dr Grace Trevelyan Grey in Fifty Shades of Grey Chuck Zlotnick 10/24 Fifty Shades of Grey film stills Anastasia Steele's best friend Kate, played by Eloise Mumford, in Fifty Shades of Grey Chuck Zlotnick 11/24 Fifty Shades of Grey film stills Dakota Johnson lets out a brief moan in Christian Grey's bed Universal 12/24 Fifty Shades of Grey film stills Christian cradles Ana Universal 13/24 Fifty Shades of Grey film stills Dakota Johnson holds a pencil seductively as Anastasia Steele Universal 14/24 Fifty Shades of Grey film stills Ana Steele and Christian Grey have an 'interesting' relationship 15/24 Fifty Shades of Grey film stills Mr Grey will see you now: Christian Grey introduces Anastasia Steele into the world of S&M Universal 16/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson as Christian Grey and Anastasia Steele in a hardware store 17/24 Fifty Shades of Grey film stills Jamie Dornan stars as protagonist Christian Grey Universal 18/24 Fifty Shades of Grey film stills Dakota Johnson stars as Anastasia Steele Universal 19/24 Fifty Shades of Grey film stills Christian Grey surprises Anastasia Steele in Fifty Shades of Grey 20/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson pictures together as Christian and Anastasia Universal 21/24 Fifty Shades of Grey film stills Dakota Johnson stars as innocent student Anastasia Steelee Universal 22/24 Fifty Shades of Grey film stills Rita Ora plays Christian Grey's sister Mia Universal 23/24 Fifty Shades of Grey film stills Jamie Dornan as playboy billionaire Christian Grey 24/24 Fifty Shades of Grey film stills Jamie Dornan stars as Christian Grey Universal 1/24 Fifty Shades of Grey film stills Dakota Johnson and Jamie Dornan as Anastasia Steele and Christian Grey during a Fifty Shades sex scene Chuck Zlotnick 2/24 Fifty Shades of Grey film stills Dakota Johnson and Jamie Dornan kiss in a lift as Anastasia Steele and Christian Grey's love affair takes off Chuck Zlotnick 3/24 Fifty Shades of Grey film stills Jamie Dornan as Christian Grey outside Grey Enterprises in Fifty Shades of Grey Chuck Zlotnick 4/24 Fifty Shades of Grey film stills Anastasia Steele with Christian Grey in his offices in Fifty Shades of Grey Chuck Zlotnick 5/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson as Christian Grey and Anastasia Steele in her hardware shop 6/24 Fifty Shades of Grey film stills Fifty Shades of Grey has just under 20 minutes of sex scenes Chuck Zlotnick 7/24 Fifty Shades of Grey film stills Anastasia Steele (Dakota Johnson) with her mother Carla (Jennifer Ehle) in Fifty Shades of Grey Chuck Zlotnick 8/24 Fifty Shades of Grey film stills Sam Taylor-Johnson, Jamie Dornan and Dakota discuss the filming of Fifty Shades of Grey on set Universal 9/24 Fifty Shades of Grey film stills Oscar winner Marcia Gay Harden stars as Dr Grace Trevelyan Grey in Fifty Shades of Grey Chuck Zlotnick 10/24 Fifty Shades of Grey film stills Anastasia Steele's best friend Kate, played by Eloise Mumford, in Fifty Shades of Grey Chuck Zlotnick 11/24 Fifty Shades of Grey film stills Dakota Johnson lets out a brief moan in Christian Grey's bed Universal 12/24 Fifty Shades of Grey film stills Christian cradles Ana Universal 13/24 Fifty Shades of Grey film stills Dakota Johnson holds a pencil seductively as Anastasia Steele Universal 14/24 Fifty Shades of Grey film stills Ana Steele and Christian Grey have an 'interesting' relationship 15/24 Fifty Shades of Grey film stills Mr Grey will see you now: Christian Grey introduces Anastasia Steele into the world of S&M Universal 16/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson as Christian Grey and Anastasia Steele in a hardware store 17/24 Fifty Shades of Grey film stills Jamie Dornan stars as protagonist Christian Grey Universal 18/24 Fifty Shades of Grey film stills Dakota Johnson stars as Anastasia Steele Universal 19/24 Fifty Shades of Grey film stills Christian Grey surprises Anastasia Steele in Fifty Shades of Grey 20/24 Fifty Shades of Grey film stills Jamie Dornan and Dakota Johnson pictures together as Christian and Anastasia Universal 21/24 Fifty Shades of Grey film stills Dakota Johnson stars as innocent student Anastasia Steelee Universal 22/24 Fifty Shades of Grey film stills Rita Ora plays Christian Grey's sister Mia Universal 23/24 Fifty Shades of Grey film stills Jamie Dornan as playboy billionaire Christian Grey 24/24 Fifty Shades of Grey film stills Jamie Dornan stars as Christian Grey Universal

The Northern Irish actor and former underwear model also insisted that he does not "get turned on" while shooting sex scenes.

"There are dozens of hairy men standing around, moving cables and lighting equipment," he said. "That's not sexy unless you're into being watched, which I'm not." Dornan also addressed concerns that Fifty Shades of Grey glorifies sexual violence against women.

Conservative groups in the US have issued statements calling on people to take action against the movie, which they accuse as "normalising domestic violence".

"I think it's very hard to argue that when it is all consensual," he said. "Half the book is about making contracts. Permission and agreement that this be done. There's no rape, no forced sexual situations."

The 32-year-old will soon be seen as serial killer Paul Spector in series two of The Fall, which airs on 13 November at 9pm on BBC Two, before Fifty Shades of Grey reaches UK cinemas on Valentine's Day 2015.