Sons of Anarchy's Charlie Hunnam shocked everybody in Hollywood by dropping out of upcoming S&M megahit Fifty Shades of Grey.

Now that the role of Christian Grey is once again up for grabs, The Social Network's Dakota Johnson might bail too, leaving the part of Ana Steele vacant as well.

Back in September, The Wrap revealed the pair had to do a "chemistry read" to convince producers and Universal executives that they had the right level of heat. An insider on the project confirmed that both had to audition for the role.

Over the weekend, Hunnam announced he would no longer play Christian Grey in the film version of Fifty Shades of Grey.

According to a statement from the studios behind the film, "The filmmakers of FIFTY SHADES OF GREY and Charlie Hunnam have agreed to find another male lead given Hunnam’s immersive TV schedule which is not allowing him time to adequately prepare for the role of Christian Grey."

Fifty Shades of Grey author E L James responded briefly on Twitter: "I wish Charlie all the best. x," she wrote. (It's unclear whether her tweet 17 minutes before that one was related: "Okay girls and boys - hold on to your hats - it's about to get serious...")