A crime film is a genre of cinema that focuses on criminal activities and the lives of those involved in them. These films often explore themes of justice, morality, and the consequences of crime. They can include various sub-genres, such as detective stories, heist films, and gangster movies, showcasing the complexities of law enforcement and criminal behavior. Typically, crime films feature characters like detectives, criminals, and victims, often highlighting the tension between good and evil. Popular examples include classics like The Godfather and Pulp Fiction, which have left a significant impact on the genre and influenced many filmmakers.