Jamie Dornan is one lucky guy. The sexy Calvin Klein underwear model with a well-chiselled physique and looks to die for has been chosen to play the role of the much-awaited character - the kinky billionaire in the upcoming movie "Fifty Shades of Grey." The fans of the E L James novel and celebrities have reacted positively to the news. Let's find out who said who.

While some of the "Fifty Shades of Grey" fans can never be happy until they see Matt Bomer or Robert Pattinson for the role but we were surprised to find a lot of positive comments for the casting of this sexy Irish actor. Dornan can be counted on and trusted to play the Christian Grey role as he already has some very good acting skills that he proved in the "Once Upon A Time." An added bonus is that Dornan has a great modelling career. Jamie replaces Charlie Hunnam who exited the role of Christian Grey citing "busy schedule."

"Girls" star Lena Dunham seemed particularly enthusiastic about the 31-year-old Dornan being cast as the Christian Grey.

"I'm a monstrous @JamieDornan1 fan. Wasn't allowed to be attracted to him on The Fall bc he played a sexmurderer. 50 Shades is my big chance!" wrote Lena on her Twitter account before adding, "Wait, Christian Grey isn't a murderer right?"

"@JamieDornan1 is my Mr. Grey. #50ShadesOfDornan," wrote Dornan's co-star from "Once Upon A Time" Josh Dallas, who played the role of Prince Charming in the movie.

"I've had a crush on Jamie Dornan for a decade!," said "The Hunger Games" actress Elizabeth Banks as she posted the picture of the E L James novel on her Instagram page.

"Congrats to the sweetest person/scariest actor I know, @JamieDornan1 !!!!" the 30-year-old actress wrote. "#50ShadesOfGrey just got real. So fu$!in psyched. #blameIreland," wrote another Jamie Dornan fan actress Kate Mara, who posted on Twitter.

"I think that Jamie Dornan is the perfect choice to play Christian Grey in FIFTY SHADES OF GREY. Smartest casting decision in a long time," wrote novelist and screenwriter Bret Easton Ellis on Twitter.

Dornan will star opposite Dakota Johnson who is all set to play the role of sexually-awakened, hopelessly in love Anastasia Steele in the upcoming movie "Fifty Shades of Grey," which starts filming in November and is slated for August 2014 release.