This document discusses genre theory, focusing on the work of theorists Steve Neale and Rick Altman. Neale argues that genres rely on repetition of conventions to attract audiences but also require some difference to remain interesting. Altman proposes a three-stage approach to genre that examines the semantic conventions, syntactic structure and narrative, and pragmatic institutional and audience factors involved in genre. The document uses examples of horror and romantic comedy films to illustrate key aspects of genre theory.