This document summarizes several common sub-genres found in thriller movies, including courtroom thrillers, movies involving murder and crime, supernatural thrillers, detective thrillers, and thrillers involving sex and relationships. Each sub-genre is defined by its key elements, such as courtroom scenes, crimes committed by villains, supernatural events, detectives investigating crimes, and relationships complicated by danger or being forced to work against each other. Examples of movies that fall into each sub-genre are also provided.