Filmmaker Sam Taylor-Johnson and actor Jamie Dornan did some real research for their forthcoming film "Fifty Shades of Grey".
The movie's director was determined to make sure the kinky drama was portrayed as realistically as possible so she and the actor spoke to real life groups with BDSM (an overlapping abbreviation of bondage and discipline, dominance and submission, sadism and masochism) fetish to gain an insight into their world, reports femalefirst.co.uk.
"Jamie and I met various dominants and dominatrices, just to make sure we understood that world so that we in no way portrayed it incorrectly," Johnson told Red magazine.
Part of her research involved a thorough understanding of E.L. James' novel and she admits she has read the raunchy book so often that she feels like she has "eaten" it.
"I've practically eaten it. I have read it over and over," she said.
The 47-year-old filmmaker, who has daughters Angelica, 17, and Jessie, nine, with ex-husband Jay Jopling and Wylda, four, and Romy, two with husband Aaron Taylor-Johnson, admitted her dedication to the project has left her going "out of her mind" because she has been so consumed with the film.
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"I'm literally going out of my mind. I have seen this film over a thousand times and I'm now in a blancmange. But the nuances within - the tiniest shift, look, blink of an eye - can make all the difference and flip it into the wrong territory," she said.
"The moment I stepped out of the meeting (after accepting the film), I stepped onto one of those bullet trains. The doors closed and I couldn't get off. The speed, the velocity, was unbelievable. I need to get off and breathe and think about something else," she added.