Sorry Twilight fans. Your favorite vampire and innocent Bella, Robert Pattinson and Kristen Stewart, and will not be "Fifty Shades of Grey" characters Christian Grey and Anastasia Steele.

According to Red Carpet News TV, Fifty Shades author E.L. James confirmed that the two lovebirds will not be playing the crucial roles for the upcoming movie, even though the whole trilogy is Twilight fan fiction.

"I think it would be too strange! It would just be .. Uggh weird!" the British author said about the couple playing the starring roles.

But James has a short casting list that she has in mind. She has a list of four men for Christian and about three for Anastasia.

"I'm not telling anyone what they are because I'm not allowed to discuss the movie at all which is a real shame," James told Red Carpet News TV. "Things are moving quite slowly on that but hopefully... it's such fun and so hopefully after we've put a few things in place it will all start to move on. We've still got to get the producers in place then deal with the script and all that. The actual film is a long way down the line."

According to IBTimes, fans of  Robert Pattinson have created the Facebook page "Robert Pattinson As Christian Grey In The 'Fifty Shades of Grey' Movie." Both actors are often included in the countless "Fifty Shades" casting polls that have hit the Web. 

Despite her feelings, James said that Stewart and Pattinson playing characters Bella and Edward inspired her to write the highly erotic novel and the two sequels, "Fifty Shades Darker" and "Fifty Shades Freed."

"The characters grew; they started that way and developed into completely their own people. It was fascinating getting to know them and know them very well," she told Red Carpet News TV. "I didn't see an outline straight away; I had no idea where these books were going to go. I just went with them. As I go to know them they grew a life of their own."

In previous reports, it was said that 2011 sexiest man on the planet Ryan Gosling is being tipped to play the S&M billionaire who persuades and dominates innocent student Anastasia Steel, according to Entertainment Wise.

"The role of the sadomasochistic billionaire seems to be man-of-the-moment Ryan Gosling's to turn down. But the 'Drive' star may take some persuading," The Sun newspaper claimed.

"Vampires Diaries" star Ian Somerhalder has been the front runner and has shown interest in the part.

According to IBTimes "Fresh List of Stars Nominated," Kaya Scodelario, who stars on the British television drama "Skins," could be the one to play the key role of Anastasia. Emma Watson, "Pretty Little Liars" star Lucy Hale and Game of Thrones beauty Emilia Clarke have all been said to be possible for the position.