The trailer you just watched is for the 1980's cult hit Friday the 13th. Sean S. Cunningham produced and directed this movie with nothing more then a name and a setting. In the 1980's the slasher sub genre was blowing up with hits like Texas Chainsaw massacre and Halloween. Cunningham was trying to cash in on the fad so he came up with the name Friday the 13th and set it at summer camp. It wasn't too long after that and the story began to come together. It is people like this that inspire me. Sean S. Cunningham was a nobody with a simple idea, and from that idea he was able to spawn one of the largest horror symbols in pop culture today. The signature Jason hockey mask is easily recognizable to the common person. People instantly reference it to Friday the 13th movies. These movies are my favorite movies to date and they are the inspiration for me to create my own slasher films. You see all slasher movies rely on simple similarities that you can find throughout the setting and story line. Slasher films have a lot of Contrast/ Affinity throughout them. Horror films rely on day time to set the story and night time for the killings to begin. The contrast of the two different lighting styles between day time and night time sets a certain mood to the audience. They know that once night time comes bad things are going to start happening. This is when affinity comes into play. Now that the audience knows something bad is going to happen they begin to see similarities in how the story is progressing. Every time a character is alone of wanders of they begin to connect the dots and figure out what is going to happen. It's all part of the formula. What makes this scary though is the Tension and Release. The movie can't be constantly have the killer killing every time they want to scare the audience. This is why they create false scares that takes the audience into someplace unfamiliar that they get scared in. An example is in the third Friday the 13th when a character screams and the audience is unaware why. All the other characters come to help her only to find out she found a snake in her room that scared her. This tricks the audience and makes them skeptical about future attempts at scaring them. They don't know if the movie is tricking them or if someone is actually in trouble and this makes the movie interesting because the audience loses the ability to predict everything that is going to happen. Below is an example of a fake Friday the 13th scare

There is a lot of fore shadowing and underlying meaning in Friday the 13th movies. This is usually performed through a prophet of doom/ an old timer from crystal lake town. This character warns the teenage group of characters in the film not to go to the camp and it is a perfect example of Text/ Subtext. The teenagers are warned and told they are doomed but they simply ignore the old man. It seems like just a crazy old man saying foolish things but there is a implied meaning behind the warning. He says they are doomed but he ultimately know they are all going to die and the audience generally figures this out. Below is an example of the Prophet of Doom