Genre and Subgenre

To make a successful opening to a thriller, we had to know what was expected for that type of genre. A genre is the category that something would fall into; in film, for example, some of these might be horror, comedy or romance.

However, there are also sub-genres to each of these which are basically something that falls into that category, but are mainly have something distinctly different.
In thrillers, there are many of these:

Action 

Crime

Psychological 

Supernatural

Scifi 

Knowing the specific genre of our film opening will help us because it will allow us to bring traditional elements that most thrillers have. For example, where action thrillers focus around weapons and fighting a supernatural thriller will focus on the fear of the unknown.