Generic Conventions are conventions which would generally be expected to be seen in specific genres. The Generic Conventions of our chosen genre would be:
Characters:
Characters in Murder Mystery films would be expected to be dress depending on their position. The Detectives generally wear smart, well-tailored clothes, however the Villains of the film are generally seen in dark, mysterious clothing, to cover their identity.
Mise-en-Scene
Clothing - The Detectives are mainly dresses in smart clothing. This connotes authority and contrasts the different social divides between classes of society. The Villains are generally dresses in dark, mysterious clothing. This makes them more suspicious to the audience, creating enigma.
Lighting - Low Key (Dark) lighting is normally used during the scene of the murder, this adds a negative atmosphere to the overall scene. However High Key (Light) lighting is generally used during the day, when the Detectives are working out the mystery.
Actors - The Detectives (Actors) are normally very brave, and do very bold, rash movements. This signifies that they're in control of the situation and can solve the case. The murderer is alot more stealthy, trying to cover his tracks to stay mysterious and not get caught.
Make-Up - There are a few different types of make-up used. The main type of make-up used is blood. This adds a scope of realism to the film. Dark make-up may also be used on the Villains to create a shadow affect on their face.
Props - Main props used by the murderer would be some sort of weapon or maybe some sort of clothing to hide their identity, creating enigma for the audience. Detective may have such props like a cane or some addition clothing like a top hat, Sherlock Holmes would be an example of props used by the Detectives.
Setting - The setting for a Murder Mystery are generally well populated, built up areas, such as London, where Sherlock Holmes was set.
Iconography - In a Murder Mystery, things like knives, blood and pipes would be classed as Iconography.
Narrative - The use of having a Narrative at the beginning of a film would be to set the scene/story. It may get the audience on a particular characters side, or maybe create enigma, leaving unanswered questions in the audience' minds.
Sound - Sound can have a huge affect on a particular scene. Such as when Non-Diagetic sounds such as music speeds up, it creates more suspense and puts the audience on edge. Diagetic sound such as dialogue can also set the scene, looking at certain Modes of Address, how are the actors communicating together?