How to film a thriller

How to film a thriller?
When a thriller is made, many techniques are used to make this. Examples of this can be high angle, low angle, point of view, tracking shot, close up, diegetic and non-diegetic sounds and more. These techniques creates tension, and thrills and audience and creates the feeling of the actor the filming.
If on the day of filming and you cannot get certain sounds you can add them in post-production.

A thriller uses a lot of fast editing with short snappy shots to intensity the shot.  Using low and high angles helps show who is powerful and who is weak and vulnerable between the characters during dramatic scenes.

 A vital part of thrillers is the lighting and environment, a environment can change a lot in a thriller and helps either gain or take away suspense when used right. Also you can use sound to add dramatic effect to the film.

A very useful tool is shot reverse shot as it shows what the character is seeing and then shows their facial expressions. It puts the viewer in the perspective of the character which makes the danger seem more real.

Using sinister music which is non-diegetic to create fear the illusion. Only the viewer can hear the sound and knows something bad is going to happen. This on top of diegetic sounds such as footsteps and breathing can add to the effect of impact of sound has in films.