Definition. What is a screenplay? An intentional-historical formalist definition -- Defending the definition : intentionality, history, and artifact concepts -- Art status. The historical narrative approach to identifying art : exegesis and defense -- From playwriting to screenwriting : the historical narrative -- Ontology. Objections and ontology I : is the screenplay an autonomous work of art? -- Instructions and artworks : musical scores, theatrical scripts, architectural plans, and screenplays -- Objections and ontology II : is the screenplay literature? -- Towards an ontology of the screenplay -- Appreciation. The appreciation of the screenplay as literature.