Thriller is a film that uses suspense to thrill the audience, there are also a couple of thriller sub genres. Sub genre is a film that falls under the main genre for example thriller but has recognisable features that classify it into a sub genre.
Each sub genre has different codes and convention which makes them slightly different .
Some of the different thriller sub genres are :
Action Thrillers- conventions include explosions , suspenseful fast paced sequences. e.g Taken (2008)
Psychological Thrillers- play with our minds and are more mental and influential than nay other thriller sub genre. e.g Alfred Hitchcock's Psycho (1960)
Romance Thrillers- Conventions include affairs love triangles often include romance related blackmailing or murderous passions.
Political Thrillers-Conventions include government corruption, corporate corruption or spying. e.g The Interpreter (2005)
Supernatural Thrillers- Thriller film in which we see good vs evil force and supernatural powers and characters. e.g What Lies Beneath (2000)
Acquired Identity Thrillers- Conventions include stealing an identity or any type of cloning.