Will Grayson, Will Grayson is written by John GreenJohn Green wrote The Fault in Our StarsThe Fault in Our Stars was released 2012. 2012 is directed by Roland Emmerich
[Human]: I like Will Grayson, Will Grayson, but can't remember who wrote it.  Can you help? [Assistant]: Will Grayson was written by John Green. It's young-adult fiction and was released in 2010. [Human]: Didn't he also write The Fault in Our Stars? 
Yes. The Fault in Our Stars was also a movie. It was directed by Roland Emmerich. Have you seen the movie?