Each subgenre has its own characteristics that will determine which genre it falls into. We may not realize it, but if there weren't all the different subgenres, people would be able to predict every movie they watch. Overall, horror films strive to achieve the goal that every scary film should have: scaring people. Horror films appear to be more terrifying to their audience if they are more realistic, which the audience can identify with, such as childhood fears, being haunted, kidnapped or other.