Thriller Film Conventions
Purpose and Themes:
A 'Thriller' is a genre of film which uses suspense, tension and excitement and tend to be adrenaline-rushing and fast-paced. The purpose of a thriller film is to manipulate the audience's mood and raise their level of anxiety. When watching a thriller the audience expects to be alert, surprised and left on the edge of their seats.
Thriller films are usually based around dramatic themes such as; greed, envy, jealousy, terrorism, pursuit, romantic triangles etc. A typical thriller would include a protagonist who is in danger and an unidentifiable antagonist. Thriller films usually include a fight or chase scene in order to emphasise the danger that the protagonist is facing.
Codes and Conventions:
Dark colours and low-key lighting is conventional to a thriller film. Low-key lighting creates shadows which makes the film more mysterious and intense. The antagonist is usually dressed in dark-coloured clothing and the protagonist is usually dressed in lighter clothing. The colour of clothing is very important as it portrays the character's personality and shows the audience who the villain is and who the victim is (like in the image above).
The use of violent iconography, such as guns and knives, are common in thriller films. They emphasise the theme of danger and make the audience feel uncertain. Phones are also common in thriller films and are mainly used be the victim. The use of a phone exaggerates the fact that the victim is alone and vulnerable and has nobody there to save them.
The pace of editing is conventional to a thriller film as it portrays a certain atmosphere to the audience. Slow editing creates intensity and heightens the audience's anxiety and fast editing creates a chaotic atmosphere, portrays the victim's erratic state of mind and makes the audience feel the same emotion as the victim. Cinematography is also a key element of a thriller. Hand-held shots are commonly used as they create an erratic atmosphere and increases the audience's adrenaline and intense excitement. The use of different angles, positioning and movement is conventional to a thriller as they show the audience different viewpoints such as; the victim's point of view, the victim's facial expressions or sometimes a certain shot will allow the audience to see what the victim can't which increases the audience's anxiety and sympathy for the victim as they know that they're about to get hurt.

The use of sound is an important feature of a thriller film as it creates suspense. Diegetic sounds are used and emphasised to make a far-fetch storyline seem more realistic. Non-diegetic sounds, such as music, is also essential as it builds the audience's anticipation. These sounds are conventional to a thriller as they portray emotions in order to create a response from the audience and helps the film meet its purpose which is to make the audience constantly feel on-edge.