Bad guys often like this kind of movie. It is a subgenre of action film that shows life of criminals and their dirty business. In the beginning of the genre, crime films were based on plays and novels of famous writers. In many cases, the action takes place in the USA during 1920s – 1950s, because it was the period of the intense growth of organized gangs. The developments in these films may be inspired by true events or the life of real gangsters. It is considered, that showing the life of gangsters often justifies their action.
In 1970s there appeared two kinds of crime movies. The first was retro-stylized and sometimes had features of comedy. The second kind included films with severe and sophisticated plots. There is also the genre of TV crime series. Its emergence was in late 1960s when the TV became popular. Also stream movies of this genre are very popular nowadays. Many people use streaming links to watch movies online.