What is genre?
A genre is the style and narrative of the film which the director follows by portraying this in the lighting, costume, cast, setting, story and camera. Every genre varies in the way they portray their genre but only subtely because there are specific codes and conventions that genres follow to show the meaning behind the genres.
What are codes and conventions?
Codes and conventions are certain aspects of the visual representation which speak to the narrative, giving you clues as to what the genre will be and what might happen. Genres usually follow these codes and conventions to give meaning.
There are two types of codes and conventions, technical and symbolic.
The technical codes is how the equipment is used in the media context to tell the story, for examle how the camera is used and the type of angles/way it's filmed.
Symbolic codes are the emotion and meaning behind a characters action or what they are wearing, this refers to a deeper inference of the narrative and builds connection with the characters.
Six types of genres and the codes and conventions that you typically find in each one
1. Horror - Low key lighting, suspensful and dark music (maybe operatic), possible gore. Weak protagonist, frail clothes. Setting depicts symbolism of isolation and death, juxtaposes with happy and open scenes for a contrast. Perhaps paranormal involved. Camera techniques: Birds eye view angle (to make the victim seem powerless), close ups (portrays the distress of emotions in the character's face), tracking (builds suspense, good for jumpscares as you don't know what the camera is going to show next) and the tilt shot (could be used to show the audience the victims point of the view as they crawl away for dear life).
2. Action - High key lighting, high octane music to fit the pace of what's happening. Usually involves guns and violence, fast cars and explosions. Heavy onset characters, strong protagonist. Camera techniques: Slow motion (showcases a really cool action or stunt to impact on the drama of a particular scene), quick cuts (increases the feeling of high stakes that makes an action film become more effective) and shaky cam (creates tension by bringing the audience into the action through erratic movements).
3. Thriller - Often low key lighting, however high key lighting is probably used in the intro. Unpleasant, suspensful and dark music, normally fast paced apart from when it's suspensful, good for use of a slow bassline. Characters are seen as vunerable victims that fall prey to a psychopath's game, or ciminal activity. With this in mind the costumes are dark, layered if set in a cold environment but still susceptible to being victimized. The protagonist is represented as willful and determined to find out the truth or apprehend the antagonist. Horror and Thriller genres have more or less the same camera techniques.
4. Romance - High key lighting, gentle and happy music unless there's a dramatic breakup in which case it would be sorrowful and blues kind of music. The characters wear bright, vibrant clothes that relate to their social situtations. Camera techniques: Close up (detail in the scene), over the shoulder shot (makes the audience feel like they are involved in the conversation) and two shot (demonstrates a relationship between two characters).
5. Sci-Fi - High key lighting, technological sounding music, goes with the idea of being in space and facing extraterrestrials. Futuristic style clothing to represent the time period. Camera techniques: Long shot (gives an overview of the setting, immerses the audience so they can identify with home planets of characters and associate different species), and high angle (suggests a person with a authority or certain race is more powerful).
6. Comedy - High key lighting, funny and joyful music. The characters have bright and vibrant costumes, relates to living humorous family lives and the silly events that take place.
For an action movie like Fast and Furious will have high key lighting, urban costumes to fit the lifestyle of speed racers/criminals such as dark, lightweight clothes, tough-looking cast (Vin Diesal, Paul Walker and Dwayne Johnson), the setting varies in each of the movies but it's generally set in a open sub-urban environment with a lot of manuverablity for the cars. The story follows different characters throughout as the main protagonist, I'd say this represents the variety in the cars they use and how exotic or different characters are adapted to those cars and the camera combined with fast-editing keeps the pace going, this means a lot of cuts and tracking also high and low angles to determine the more powerful racer, giving them the authority in a relationship between other competitors. A film similar to this is 'Gone In Sixty Seconds', featuring Nicholas Cage and Angelina Joline (high-grossing action characters) where the main part to the story is that Cage is to steal (criminal activity) 50 exotic cars in order to pay back the criminal he got into prison.
In a horror movie such as The Unborn, there is low key lighting which symbolises the dark undertone of the story and mysterious yet suspensful nature of a demon that takes possession of humans as it tries to be physically born through the main character Casey. This in itself represents a pure horror feel, a paranormal entity trying to be born into the physical realm through a human being. The costumes are reaveling on the women, and white clothing to suggest Casey's innocence but together this symbolises her vunerablity and inability to do anything about the force that's chasing her. Set in a sub-urban environment, The Unborn makes even this scary, bringing the horror to our neighbourhood so to speak with a very dark tone of possesive intent and surrealistic nightmares coming to life in reality. There is one particular scene where mid shot is being used and it stays still with Casey in the frame sorting herself out in the bathroom at which point it goes to a close up of the mirror she is facing. After closing the cupboard where the mirror is on twice, the second time a figure appears and she freaks out but the camera never moves out of place. The ending of this film is quite typical of a supernatural horror, a ritual of some kind to banish the evil spirit, this goes horribly wrong and you guessed it, they all die. A horror similar to this one is 'Mirrors', in this thiller/horror Bruce Willis is the security officer of an abandoned building. He starts noticing that the mirrors have some sort of entity on the other side, Willis puts his hand on one of this mirrors expecting to rub of a hand mark made on it (with use of a close up) but little does he know that he just touched the other realm of supernatural spirits which now begin to follow him into the normal world. To rid himself of these evil spirits Willis goes to a priest, again turning to religion like The Unborn however also like in The Unborn you think it worked and then there's a twist, which makes way for Mirrors 2.