Jamie Dornan, left, and Dakota Johnson appear in a scene from "Fifty Shades of Grey" in this image released by Universal Pictures and Focus Features. THE CANADIAN PRESS/AP-Universal Pictures and Focus Features

E.L. James wasn't willing to let others dominate the "Fifty Shades of Grey" film.

From the start of the development process, reports swirled over the author's request for an unusual amount of creative control over the big-screen version of her erotic bestseller.

And as the S&M-focused, Vancouver-shot film gets set for release on Friday, more details have surfaced about just how much input she had.

Director Sam Taylor-Johnson recently told Porter magazine that "It was difficult" with James being so attached to the movie, admitting that they had "creative fights."

She also told the Hollywood Reporter "there were times when it was really, really frustrating."

James isn't the only author who's been hands-on with a film adaptation of their work.

Here are five examples of other writers who've also been involved in cinematic versions of their books:

— J.K. Rowling and the "Harry Potter" series: You could say Rowling had a magical contract with Warner Bros. for the film adaptation of her boy wizard series. She not only had a say in principal casting as well as the screenplays, she also had input on where the films were shot and got a producer credit. As Rowling told the Times U.K. in June 2000, she had "a huge amount of influence" in the development process.

— Cheryl Strayed with "Wild": As Montreal director Jean-Marc Vallee told The Canadian Press, Strayed "became part of the team" while her memoir got the Hollywood treatment. She read various versions of the script and was an unofficial technical adviser as Vallee depicted her soul-seeking journey on the Pacific Crest Trail. Laura Dern, an Oscar nominee for playing Strayed's mother, said she bonded with the author on set and the two have since vacationed together with their families.

— Suzanne Collins with "The Hunger Games"; Gillian Flynn with "Gone Girl": Collins co-wrote the screenplay for the first film in her dystopian adventure series and earned a producing credit for all three movies to be released so far. Meanwhile, Flynn was the lone screenwriter on the big-screen remake of her psychological thriller, which has earned star Rosamund Pike an Oscar nomination.

— Stephen Chbosky's "The Perks of Being a Wallflower": Chbosky went a step further than Collins and Flynn, not only writing the screenplay for his film but also directing it. It's perhaps understandable why he'd want to have full control over the adaptation of the hit 1999 coming-of-age novel. After all, the story of a shy and troubled teen who bonds with an eclectic group of seniors in high school is autobiographical.

— Stephenie Meyer with the "Twilight" series: Meyer reportedly had a close relationship with director Catherine Hardwicke during the initial stages of bringing her vampire saga to the screen. Meyer also visited the set, got a producer credit and a cameo in the first film, and was consulted on the story. According to Entertainment Weekly, Meyer was guaranteed "that the film would be true to her vision."

News from © The Canadian Press, 2015