Here's which actors passed on the 'Fifty Shades of Grey' lead roles

“Fifty Shades of Grey” may have dominated the box office this weekend, but it wasn’t exactly easy adapting E.L. James’ best selling novel for the big screen.

While Dakota Johnson and Jamie Dornan ended up playing Anastasia Steele and Christian Grey, respectively, finding the right chemistry between two actors with available schedules proved fairly difficult.

Jamie Dornan Dakota Johnson Ian Gavan/Getty ImagesDakota Johnson and Jamie Dornan landed the coveted roles of Anastasia Steele and Christian Grey.

Initially, “Sons of Anarchy”actor Charlie Hunnamwas cast as Christian Grey, but many fans of the book didn’t approve of the choice.

Charlie HunnamDimitrios Kambouris / Getty ImagesActor Charlie Hunnam dropped out of ‘Fifty Shades’ after being cast.

A petition to re-cast the movie garnered 20,000 signatures on, and due to scheduling conflicts and reported clashes between Hunnam and Universal Pictures, Hunnam eventually dropped out of the project.

Just 11 days later, “Once Upon A Time” actor Jamie Dornan was cast in the role.

Amid all of the casting back-and-forth, the film’s producer Dana Brunetti tweeted somewhat of an explanation:

“There is a lot that goes into casting that isn’t just looks. Talent, availability, their desire to do it, chemistry with other actor, etc … So if your favourite wasn’t cast, then it is most likely due to something on that list. Keep that in mind while hating and keep perspective.”

Brunetti was apparently hinting at the handful of actors who actually turned down the leading roles.

While “50 Shades” author E.L. James has said actor Ryan Gosling was the original prototype for Christian Grey, he doesn’t do sequels.

“50 Shades” is a guaranteed trilogy.

Ryan goslingREUTERS/Yves Herman’50 Shades’ author E.L. James has said actor Ryan Gosling was the original prototype for Christian Grey

Before Hunnam got the gig, Garrett Hedlund reportedly turned it down.

“Hedlund was heavily courted by Universal, but the ‘Tron: Legacy’ star passed in July because he couldn’t connect with the character,” according to The Hollywood Reporter.

Backing for “White Collar” actor Matt Bomer was so strong that a petition started by fans to cast him garnered almost 100,000 signatures.

Matt bomer 50 shades of grey elliotGetty Images / Frazer HarrisonFan favourite Matt Bomer

Other actors in the mix included “Magic Mike” star Alex Pettyfer, who auditioned for the role, “Gossip Girl” actor Chace Crawford,who publicly statedhe would “love the challenge” of the role, Alexander Skarsgård said on “Access Hollywood” he was “born to play” Christian Grey, and “The Vampire Diaries” star, Ian Somerhalder, told Ryan Seacrest that being cast “would be an incredible thing. Hopefully that could pan out.”

Fans had their own casting ideas, pushing for Somerhalder as Christian Grey and Alexis Bledel to play Anastasia Steele, in a fan-created mashup trailer that received over a million views.

The role of Anastasia Steele was also a tricky one to cast.

According to Newsweek, “‘Pretty Little Liars’ star Lucy Hale auditioned, as did ‘The Carrie Diaries” Chloe Bridges, but neither was quite prepared to tackle the subject matter. Hale said the audition made her ‘uncomfortable.'”

Bridges, meanwhile, told Cosmopolitan the role was too risqué.

“The scene was, like, the girl telling her friends about some sexcapade she had,” explained Bridges. “But it goes into extreme detail and uses the word ‘sperm’ a couple times. I was like, ‘I don’t know, guys, I have to go home to my grandparent’s house in a few months at Christmas, I don’t know if I can do this.'”

Chloe BridgesJohn Sciulli/Getty ImagesActress Chloe Bridges

Despite early rumours that Emma Watson was being considered, the “Harry Potter” actress tweeted:

And so, the role went to Melanie Griffith and Don Johnson’s 25-year-old daughter, Dakota Johnson, who had previously only appeared in minor but memorable roles in “21 Jump Street” and “The Social Network.”

Whether “Fifty Shades” fans agreed with the Dakota Johnson and Jamie Dornan casting or not, they clearly have star power as the duo pulled in arecord-breaking $US266 million worldwide over President’s Day weekend.

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