The studio said the release dates would be Feb. 10, 2017, and Feb. 9, 2018. It also confirmed that the script for "Darker" will be written by the husband of series author E L James, Niall Leonard, who is also a published author.
The first "50 Shades" film opened this year on Valentine's Day weekend and became one of the biggest R-rated openings ever. It has grossed $569 million worldwide.
Kelly Marcel penned the original adaptation but isn't returning. Also not returning is director Sam Taylor-Johnson, whose disputes with James were well-known.