John Green's fans have really intense feelings about the “Looking for Alaska” movie. The author recently took to Twitter to ask fans to stop sending him death threats about the casting of his novel's film adaptation.

Paramount’s new teenage drama, “Looking for Alaska,” is currently in the casting process, and fans got angry when they saw actress Acacia Brinley, a YouTube vlogger and actress, hint that she had an audition. Brinley, 17, posted on Twitter that she had an audition for the movie adaptation of her favorite books and then tweeted at John Green a few days later, asking to be best friends. Brinley also tweeted a picture of a script, J-14 reports, but the picture has since been deleted.

“Looking for Alaska” is based on Green’s 2005 young adult novel about a teenage boy, Miles, who transfers to private school and falls for a mysterious girl named Alaska. While the book was Green’s first novel, it’ll be his third book to hit the big screen, after last summer’s “The Fault in Our Stars” and this summer’s “Paper Towns” (in theaters July 24).

Fans assumed that Brinley was auditioning for the role of Alaska, and they weren’t very supportive. Green, 37, apparently saw a lot of backlash on social media and even received several death threats. On Wednesday, he made it clear that he doesn’t cast the movie. The award-winning author also said that he’d never even heard of Brinley.

It seems that it isn’t uncommon for authors to receive death threats when a screen adaptation is being cast. In a conversation with “The Mortal Instruments” author Cassandra Clare (who is currently seeing her characters cast in ABC Family's “Shadowhunters”) and “Beautiful Creatures” author Margaret Stohl, Green revealed that even his son Henry, 5, had received threats against his life.

No official announcements about the “Looking for Alaska” cast have been made. Fans shouldn’t worry about casting too much if they like the actors in “The Fault in Our Stars” and “Paper Towns.” Green’s third movie adaptation will include much of the same team. Producers Wyck Godfrey and Marty Bowen will return for the film as well as screenwriters Scott Neustadter and Michael H. Weber.

It’s probably for the best that Green doesn’t cast the film. He revealed that comedian Amy Schumer would play every role if it were up to him.

A release date for “Looking for Alaska” has not been announced.