A gangster film or gangster movie is a film belonging to a genre that focuses on gangs and organized crime. It is a subgenre of crime film, that may involve large criminal organizations, or small gangs formed to perform a certain illegal act. The genre is differentiated from Westerns and the gangs of that genre.
Cyberpunk is a subgenre of science fiction in a dystopian futuristic setting that tends to focus on a "combination of lowlife and high tech", featuring futuristic technological and scientific achievements, such as artificial intelligence and cybernetics, juxtaposed with societal collapse or decay.
The Spaghetti Western is a broad subgenre of Western films produced in Europe. It emerged in the mid-1960s in the wake of Sergio Leone's film-making style and international box-office success. The term was used by foreign critics because most of these Westerns were produced and directed by Italians.