"Fifty Shades of Grey" is going to be in theaters soon, and that means more juicy details are coming up, including filming of the most awaited scenes between leads Jamie Dornan and Dakota Johnson - Christian Grey's penchant for bondage and sadomasochistic sex.

As The Daily Mail noted, Jamie previously shared how he got ready to play the young and powerful businessman from EL James's novels, and he didn't really enjoy it. He said, "One rainy Tuesday evening, I kissed my wife and baby goodnight and went to watch a dominant/submissive session in a dungeon. The dominant was our sort-of adviser on the job. So I watched him do his thing... I didn't enjoy it massively, but it was helpful to a point."

Dakota, on the other hand, did not have the same experience as Jamie pre-shooting. She explained, "I didn't go to the sex dungeon. I wanted to keep myself distanced from it at first because I wanted Ana's reaction to certain things to be completely honest and real, like new."

In an interview with Glamour Magazine, however, Jamie and Dakota shared that despite their chemistry on-screen, they get anxious during the filming of the BDSM scenes in the infamous Red Room.

Dakota shared, "The scenes in that room were definitely the most vulnerable scenes in the movie. But it was a very closed set - my mom [Melanie Griffith] told me that it's my right to ask for that during intimate scenes, so it seemed like [Jamie and Sam and I] were in this little world together."

But it is even more uncomfortable for the gentlemanly Jamie. He explained, "Some of the Red Room stuff was uncomfortable. There were times when Dakota was not wearing much, and I had to do stuff to her that I'd never choose to do to a woman."

In fact, Jamie is very protective of his co-star on-set. Dakota even admitted, "It's stressful enough to be tied to a bed naked in a scene. But then they call cut, and you're still tied to the bed, naked. Jamie would be the first one to throw a blanket over me."

The New York Daily News also noted that, as it turned out, they left out the more difficult scenes during the last few weeks of filming, according to director Sam Taylor-Johnson, "By that point we had time to get to know each other, to build that trust, which was important to be able to go into the next realm. Those days on set were calm, but you could definitely feel tension."

The erotic film is set to be released on February 13, 2015.