updated 10/25/2013 AT 10:00 AM ET
•originally published 10/25/2013 AT 10:40 AM ET
It’s official now.
The author Tweeted her excitement Thursday, writing: “Stow your twitchy palms ladies our man is here. Welcome to #TeamFifty @JamieDornan1.”
Dornan, 31, steps in for Charlie Hunnam, who backed out of the sexy, bondage-filled film on Oct. 12. The buff Dornan, a former Calvin Klein model and Once Upon A Time actor, is married – sorry, ladies – to the ex-wife of another screen hunk, Colin Farrell.
He also appeared in the 2006 Sofia Coppola film Marie Antoinette.