Sub-genres are different categeories of films within a particular genre. There are many different sub-genres in the thriller category, and some are;
My favourite sub genres are action, mystery and psychological. I prefer these because they draw my attention to them especially as the plot may be revealed to the audience and I will want to see what is revealed from the characters. My favourite mystery thriller is 'Phone Booth' (2002).
Phone Booth is about a man who is held hostage in a telephone booth by a sniper. It is directed by Joel Schumacher. After work, the main character Stu (Colin Farrell) phones his girlfriend and rudely dismisses a pizza delivery man. After this, the phone rings and he answers, this is where the films begins to create suspense. place.