Hunnam was originally cast in the role of Christian Grey, but bowed out recently over what he said was too-busy filming schedule. (Fans suspect it may have also been in reaction to their public outcry about his casting, but that's just a theory.)
According to Variety, Dornan has been offered the role -- though it's unclear yet if he's officially signed on for the role. If so, he will co-star with Dakota Johnson in the movie based on E.L. James' best-selling erotic novel.
The book series started out online as steamy Twilight fan fiction before James changed some names and a few details and self-published the novels. (The series was later picked up by Random House.)
Dornan previously appeared on the hit ABC show "Once Upon a Time" as the huntsman.