Now there is colour and better technology thriller films can be more effective as the directors and producers were able to use lighting and HD camera recording. The lighting used in films can stimulate the viewer's moods.
The main elements in a thriller were: suspense, tension and excitement. Thriller films were in black and white and overtime technology has improved which gave thriller films and other TV programmes high definition and colour.
This enhanced the thrill of films as they started to use lighting in the films. Thriller films became popular after the Man’s slaughter of President Kennedy that disturbed millions of people worldwide.
'North by Northwest'
'psycho'
Thriller films improved due to better quality and more technology being made. Before 1960’s films were in black and white, for example Alfred Hitchcock’s film were in black and white, however he still made thrillers films scary.