Genre

In film theory, genre refers to the method based on similarities in the narrative elements from which films are constructed. There are many different types of film genres such as:

Action films usually include high energy, big-budget physical stunts and chases, possibly with rescues, battles, fights, escapes, destructive crises (floods, explosions, natural disasters, fires, etc.), non-stop motion, spectacular rhythm and pacing, and adventurous, often two-dimensional 'good-guy' heroes (or recently, heroines) battling 'bad guys' - all designed for pure audience escapism. Includes the James Bond 'fantasy' spy/espionage series, martial arts films, and so-called 'blaxploitation' films. 

Adventure films are usually exciting stories, with new experiences or exotic locales, very similar to or often paired with the action film genre. They can include traditional swashbucklers, searches or expeditions for lost continents, "jungle" and "desert" epics, treasure hunts, disaster films, or searches for the unknown.

Comedies are light-hearted plots consistently and deliberately designed to amuse and provoke laughter (with one-liners, jokes, etc.) by exaggerating the situation, the language, action, relationships and characters.

Crime (gangster) films are developed around the sinister actions of criminals or mobsters, particularly bankrobbers, underworld figures, or ruthless hoodlums who operate outside the law, stealing and murdering their way through life. Criminal and gangster films are often categorized as film noir or detective mystery films - because of underlying similarities between these cinematic forms. This category includes a description of various 'serial killer' films.

Dramas are serious, plot-driven presentations, portraying realistic characters, settings, life situations, and stories involving intense character development and interaction. Usually, they are not focused on special-effects, comedy, or action, Dramatic films are probably the largest film genre, with many subsets.

Epics include costume dramas, historical dramas, war films, medieval romps, or 'period pictures' that often cover a large expanse of time set against a vast, panoramic backdrop. Epics often share elements of the elaborate adventure films genre. Epics take an historical or imagined event, mythic, legendary, or heroic figure, and add an extravagant setting and lavish costumes, accompanied by grandeur and spectacle, dramatic scope, high production values, and a sweeping musical score. Epics are often a more spectacular, lavish version of a biopic film. Some 'sword and sandal' films (Biblical epics or films occuring during antiquity) qualify as a sub-genre.

Horror films are designed to frighten and to invoke our hidden worst fears, often in a terrifying, shocking finale, while captivating and entertaining us at the same time in a cathartic experience. Horror films feature a wide range of styles, from the earliest silent Nosferatu classic, to today's CGI monsters and deranged humans. They are often combined with science fiction when the menace or monster is related to a corruption of technology, or when Earth is threatened by aliens. The fantasy and supernatural film genres are not usually synonymous with the horror genre. There are many sub-genres of horror: slasher, teen terror, serial killers, Satanic, Dracula, Frankenstein, etc.

Sci-fi films are often quasi-scientific, visionary and imaginative - complete with heroes, aliens, distant planets, impossible quests, improbable settings, fantastic places, great dark and shadowy villains, futuristic technology, unknown and unknowable forces, and extraordinary monsters ('things or creatures from space'), either created by mad scientists or by nuclear havoc.Science fiction often expresses the potential of technology to destroy humankind and easily overlaps with horror films, particularly when technology or alien life forms become malevolent, as in the "Atomic Age" of sci-fi films in the 1950s.