Research into our chosen film genre

When deciding for our final film we decided to go with Emma's idea of a horror film about a girl haunted by her past and who receives mysterious visits by a ghost through the film ending unexpectedly.

To gain more knowledge about this chosen genre i have done some wider research into it.
I did some of my research using this website http://filmmakeriq.com/lessons/the-psychology-of-scary-movies/ 
http://www.filmsite.org/horrorfilms.html 
http://thescriptlab.com/screenplay/genre/horror

There are many qualities of a horror film the first is tension a key theme in all films of this type. Horror Films are unsettling films designed to frighten and panic, cause dread and alarm, and to invoke our hidden worst fears, often in a terrifying, shocking finale, while captivating and entertaining us at the same time in a cathartic experience. Horror films effectively center on the dark side of life, the forbidden, and strange and alarming events. They deal with our most primal nature and its fears: our nightmares, our vulnerability, our alienation, our revulsions, our terror of the unknown, our fear of death and dismemberment, loss of identity, or fear of sexuality.Horror film is a genre that aims to create a sense of fear, panic, alarm, and dread for the audience. These films are often unsettling and rely on scaring the audience through a portrayal of their worst fears and nightmares. Horror films usually center on the arrival of an evil force, person, or event. Many Horror films include mythical creatures such as ghosts, vampires, and zombies. Traditionally, Horror films incorporate a large amount of violence and gore into the plot. Though it has its own style, Horror film often overlaps into Fantasy, Thriller, and Science-Fiction genres.