Artist and film-maker Sam Taylor-Johnson has agreed to direct the film version of Fifty Shades of Grey .
The writer of the bestselling erotic novel EL James announced the news on Twitter:
"I'm delighted & thrilled to let you guys know that Sam Taylor-Johnson has agreed to direct the film of Fifty Shades of Grey."
Taylor-Johnson won critical acclaim for her debut film, Nowhere Boy, which told the story of the early life of John Lennon.
The 46-year-old was initially known for her artistic work which included a film of David Beckham sleeping.
The erotic novel has sold more than 5.3 million copies in the UK, making it the bestselling book of all time.