'Fifty Shades Of Grey' Author Gets Last Word On Film's Ending Plus New Clip, Vanessa Bayer's Parody & Lego Trailer When authors have their work adapted for the big screen, some leave it to the filmmakers to their execute their vision, while others are protective, watching every step of the development and production process to ensure the story is told correctly. The latter scenario was E.L. James' approach for "Fifty Shades Of Grey," leading to some head-butting between writer and director Sam Taylor-Johnson.  "It was difficult, I'm not going to lie," the director told Porter magazine. "We definitely fought, but they were creative fights, and we would resolve them.