'Fifty Shades Of Grey' Movie Set Drama: Director Feuding With '50 Shades' Author, EL James?

It appears there's trouble on the set of the "Fifty Shades of Grey" film, and it has nothing to do with Christian Grey and Ana Steele's rocky BDSM romance.

According to a report from E! News Tuesday, "Fifty Shades of Grey" director Sam Taylor-Johnson ("Nowhere Boy") and the author of the erotica trilogy, E.L. James, are reportedly butting heads over the direction of the film adaptation. "Sam is getting annoyed about the way the script is being handled," an insider revealed.

James, 50, is allegedly feuding with Johnson over her fears that the film may not tell the love story accurately. "E.L. James wants the movie to match the book exactly, but Sam has a different perspective," said the insider, adding, "Sam is reminding E.L. she writes books and [Sam] makes movies. This has caused some tension between the two of them."

James, who's on location in Vancouver with the film crew, had expressed happiness when news broke last June that Johnson would direct the erotica tale's film adaptation. "I'm delighted & thrilled to let you guys know that Sam Taylor-Johnson has agreed to direct the film of Fifty Shades of Grey," James posted on Twitter back in June.

While things might be a bit tense between the leaders of the film adaptation, the source claims that Johnson has been getting along well with the films' stars, actors Jamie Dornan (Christian Grey) and Dakota Johnson (Anastasia "Ana" Steele). "Sam has a great relationship with the actors," said the film insider, adding, "The script is running smoothly and there is not a lot of re-shooting that has had to be done."

"Fifty Shades of Grey" began shooting in Vancouver, Canada, in late November. In recent weeks, the cast has been spotted shooting a steamy bike messenger rescue scene and the fan-loved "submissive special" car-gifting sequence. The film is currently scheduled for a February 2015 theater release.