What movie screenplay written by Alvin Sargent is based on a book about the growth of a protagonist from youth to adulthood? 
Anywhere but Here
Title: The Amazing Spider-Man (2012 film)
Passage: The Amazing Spider-Man is a 2012 American superhero film based on the Marvel Comics character Spider-Man, and sharing the title of the character's longest-running comic book.  It is the fourth theatrical "Spider-Man" film produced by Columbia Pictures and Marvel Entertainment, and a reboot of Sam Raimi's "Spider-Man" 2002-2007 trilogy preceding it.  The film was directed by Marc Webb.  It was written by James Vanderbilt, Alvin Sargent and Steve Kloves and it stars Andrew Garfield as Peter Parker / Spider-Man, Emma Stone as Gwen Stacy, Rhys Ifans as Dr. Curtis Connors, Denis Leary as NYPD Captain George Stacy, along with Martin Sheen and Sally Field as the uncle and aunt of Peter Parker, Ben Parker and May Parker.  The film tells the story of Peter Parker, a teenager from New York who becomes Spider-Man after being bitten by a genetically altered spider.  Parker must stop Dr. Curt Connors as a mutated lizard, from spreading a mutation serum to the city's human population.
Title: Coming-of-age story
Passage: In genre studies, a coming-of-age story is a genre of literature and film that focuses on the growth of a protagonist from youth to adulthood ("coming of age").  Coming-of-age stories tend to emphasize dialogue or internal monologue over action, and are often set in the past.  The subjects of coming-of-age stories are typically teenagers.  The Bildungsroman is a specific subgenre of coming-of-age story.
Title: Anywhere but Here (film)
Passage: Anywhere but Here is a 1999 American coming-of-age comedy-drama film, based on the novel of the same name by Mona Simpson.  The screenplay was written by Alvin Sargent, and the film was directed by Wayne Wang.  It was produced by Laurence Mark, Petra Alexandria, and Ginny Nugent.  It stars Susan Sarandon, Natalie Portman, and Shawn Hatosy.
Coming-of-age story Anywhere but Here (film)