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Charlie Hunnam seemed to be the one who had huge regret for ditching "Fifty Shades of Grey". The actor once again said in an interview that it was a painful decision to walk away from the role of Christian Grey in the highly-anticipated adaptation of E.L. James' book.

"I just kind of made a bit of a rookie mistake in that one in biting off more than I could chew," Hunnam told Entertainment Weekly. "It was a little bit annoying and a little bit painful, and I really was just so sad for Sam [Taylor-Johnson], the director, because I absolutely adore her, and I gave her my word and committed to going on this journey with her."

The selection of Hunnam for the most-sought Hollywood role was celebrated by many that his exit was disappointing. "It was a very difficult position that I put myself in, and that I put the studio in, because of course, those type of things are like red rag to a bull to a lot of bloggers and reviewers," the 34-year-old actor said.

Emotionally, he "just lost my mind last year. I had some big personal stuff going in my life, and I think it just threw me off balance and I decided I was gonna buy a ranch. I was gonna take 50 Shades and every other movie that I got offered all at the same time, and then I had something of a nervous breakdown and had to pull out of all of it. So I didn't end up buying that ranch."

The "Sons of Anarchy" star continued, "Literally, I had an hour until my, like, six-figure deposit was no longer refundable. When I say I pulled out at the 11th hour, I really did. That sucks. That sucks for everyone involved."

Hunnam said previously that he could not handle the pressure of shooting the seventh season of "Sons of Anarchy", "Fifty Shades of Grey" and "Crimson Peak" at the same time. The latest title was something that he had committed long before saying yes to "Fifty Shades", therefore he could not back out of it.

Jamie Dornan ended up replacing him as Christian Grey. "Fifty Shades of Grey" hits theaters February 13, 2015.