Behind the Scenes With 'The Fault In Our Stars'

Last night Forever Fest and Twentieth Century Fox presented an advance screening of the highly anticipated film, The Fault In Our Stars. After the showing, moviegoers were treated to a Q&A with author John Green and director Josh Boone.

Boone recalled how he first heard of Green's book: before he started working on his first feature, Stuck In Love, Boone lost a close friend to lung cancer. Nat Wolff (who plays the character Isaac in Faults) gave him a copy of the book, and Boone became engrossed with its story and characters. The director job didn't come to him; he went to Fox and convinced them he was the man for the job.

Both Boone and Green wanted the film to have the most authentic feel possible, so when casting extras in the support group scenes they used teenagers affected by cancer instead of actors. "All these kids we met, they were just like Hazel and Gus. They were so smart, so funny, cynical, dark and great. They were so much more than you could have expected," Boone said.

Other highlights from the Q&A:

• Originally Green had a cameo ( or "supporting role" as he likes to call it) which was cut but will be featured in the DVD extras. It was revealed he was schooled by a 6 year old on set on how to be the best possible actor. It's safe to say he is gonna stick to novel writing.

• Green's third novel, Paper Towns is being developed into a feature with Wolff playing the lead role and Faults screenwriters Scott Neustadter and Michael Weber returning to adapt the screenplay.

• Green is a reader and admirer of Faults fan fiction. "I'm so grateful to the people who care enough about the book to extend it outside of its world."

Lastly, if you want more girliness and romance be sure to check out Forever Fest, which will take place Nov. 14-16 at Alamo Drafthouse.

Watch the entire segment below moderated by FF founders Brandy Fons and Sarah Pitre.