Winona Ryder has stepped in to replace pregnant actress Maggie Gyllenhaal in an upcoming film about notorious killer Richard 'The Iceman' Kuklinski.

The Dark Knight actress was initially due to portray the wife of the infamous Mafia contract killer opposite Michael Shannon, but Gyllenhaal, who announced her second pregnancy last month, has since walked away from the role and Ryder has been cast in her place, according to Deadline.com.

It's the second major casting revamp in recent weeks - James Franco was previously tapped to star as The Iceman's mentor, but the 127 Hours actor quit the project due to contractual issues.

Franco's role has since been filled by Captain America star Chris Evans.

Ray Liotta and are also attached to the movie, which is set for release in 2013.