Author Stephen Chbosky will direct a film adaptation of his 1999 novel, The Perks of Being a Wallflower. According to New York Magazine, Chbosky will write the screenplay as well.

Two book-based-movie stars have signed up for this project. Percy Jackson actor Logan Lerman will play the lead character, Charlie. Harry Potter actress Emma Watson will play one of his two best friends, Sam.

In 2009, Chbosky’s book hit the #3 spot on the American Library Association’s top ten most frequently challenged books of 2009. The association listed these reasons for the challenges: “anti-family, drugs, homosexuality, offensive language, religious viewpoint, sexually explicit, suicide, unsuited to age group.” (Via the Huffington Post)

EDITOR’S NOTE: This post has been updated to correct an inaccuracy about casting.