adaptation
/ˌædæpˈteɪʃənz/
A film adaptation is the transfer of a written work, in whole or in part, to a feature film. Although often considered a type of derivative work, recent academic developments by scholars such as Robert Stam conceptualize film adaptation as a dialogic process. A common form of film adaptation is the use of a novel as the basis of a feature film. Other works adapted into films include non-fiction (including journalism), autobiography, comic books, scriptures, plays, historical sources, and even ot...