This document summarizes key aspects of different movie genres: - Action films rely heavily on special effects and stunts and have large budgets. They feature recognizable action stars but are not highly praised critically. - Comedy films are star-driven and have lighter stories and budgets than action films. They aim to make audiences laugh. - Thriller movies have serious stories, mystery, and suspense to keep audiences interested. They feature powerful performances. - Horror movies use graphic special effects to scare audiences and invent new ways for characters to die gruesome deaths. Believable performances are prioritized over quality of acting.