Christian Bale has bailed on the film Enzo Ferrari. The biopic of the auto magnate required a sizable weight gain, and Bale didn’t believe he had time to gain the weight safely before production was set to begin.

This certainly wouldn’t have been the first time Christian Bale was required to gain or lose a significant amount of weight for a film role.

Christian Bale gained 43 pounds for his role in American Hustle. On the opposite end of the spectrum, he lost 62 pounds for his role in The Machinist, subsisting on black coffee, an apple, and one can of tuna fish per day.

Christian Bale's transformations have been well known. Even this role was too much for him…https://t.co/SmM40n3g7q pic.twitter.com/1fR2jIfg84

— TheLADbible (@TheLadBible) January 16, 2016

“It is because he made radical transformations in the past for roles such as The Machinist and American Hustle and began the weight gain process for Ferrari he felt necessary, but couldn’t safely be ready in time for Spring, 2016,” a source tells E! News of the reason Bale dropped out of this film.

Enzo Ferrari is set to begin filming in the spring. It is based on the biography written by Brock Yates that follows the automaker throughout his 90 years, covering both his passion and his life story.

#ChristianBale drops out of Ferrari biopic because he couldn’t safely gain weight in time: https://t.co/ol62345z72 pic.twitter.com/STjfR26sni

— Vulture (@vulture) January 16, 2016

It’s certainly easy to understand why Christian Bale, who is 41, might decide that another substantial weight gain wasn’t conducive to good health.

It will be interesting to learn who replaces Christian Bale in the upcoming film.