'Fifty Shades of Grey' helmer Sam Taylor-Johnson may have made a hugely successful, but she's considering walking out of the trilogy.

The Reason? Taylor-Johnson, 47, and the erotic novel's author E.L James just can't get along. The director has been open about her on-set clashing with the 51-year-old bestselling writer, and according a source, since their relationship has become "toxic," she wants out and Universal too feels it's the right decision.

Taylor-Johnson had openly said that it was difficult and frustrating when the "author and auteur," didn't agree. While Taylor-Johnson's association with the next film is still in question, stars Jamie Dornan and Dakota Johnson would surely be returning for the future sequels, 'Fifty Shades Darker' and 'Fifty Shades Freed.'