Is James Cameron's Avatar Based on a Book?

James Cameron's Avatar is not based on a third-party book; it originates from Cameron's own original story and screenplay. This evergreen explainer outlines the relationship between the film and the written works credited to Cameron, including the prose story novella and script materials that preceded production. We clarify common confusions with public domain tales or myth structures, distinguish between Cameron-authored sources and external influences, and provide key attributes in a concise table for clarity. The following sections cover background, source hierarchies, production context, and lasting references that underpin the franchise's creative roots.