The document describes three main characters - Erin Blake, Isla Hall, and Amber Hocart - in a teen drama film. Erin is the shy, quiet main character who prefers the indoors. Isla is outgoing and popular, contrasting with Erin. Amber is a daydreamer who provides comic relief. The characters were constructed based on research from films like Gone Girl and represent teenage life and friendship positively. Their costumes highlight their personalities while challenging stereotypes about teens and girls.