What makes a scary movie scary?

     I have seen so many good scary movies, and some that are not so good.  Some directors know how to scare their audiences and know how to create suspense and horror.  Scary movies don't just happen by accident but you have to know what you are doing, and everything has to go together in unison.  The director has to understand the audience and know what relates to them to create a successful and likeable horror movie.
   The special effects is probably the most important factor of a scary movie.  Without the blood, deformed looking mutant monster or creating them to look monstrous, you would not have a scary movie.  Technology has come along way, the scary movies that you've watched when you were a little kid is quite different from the one's today.  The scary movies nowadays have better special effects and  a lot more frightening.
    The dedication of the director is important too.  If a director is dedicated and passionate about making the greatest horror movie, chances are he will succeed.  If you love what you do and could spend hours on creating a twisted plot and putting things together to make it happen, your dedication will not be wasted.  If the first horror movie doesn't turn out the way you want it to be, you will not give up but continue to try until it's perfect.
   The timing in the scary movie is important, when it come to timing, that's where the suspense and horror starts.  Many people don't like how the first 30 minutes of the movie, nothing scary happens and automatically think that it's not going to be a good horror movie.  Let me tell you, that's not necessarily true, the first half hour to 45 minutes is when you learn about the characters and the story so that when you watch on you have an understanding of the story.  After that,  the creepy deformed monster shows up.  What makes it more suspenseful is that one character in the movie knows about the monster but gets killed from the monster.  The rest of the character don't know about it and when the time is right, Boom! The monster comes and snatches of them and that's when the climax starts.
     Music and sound effects are also important  in creating the creepy eerie mood for a scary movie.  In all of the scary movies, when the monster walks up to the character and their is usually no sound except for the loud footsteps of the  monster and the loud breathing of the character, that creates suspense and you know that the monster is going to get him or her.  In the movie Jaws, when the shark comes up to snatch the girl, the theme sound captures you makes you want to turn away.
    I think that every little detail in a scary movie contributes to having a good scary movie, timing needs to be perfect, sound effects and music needs to be frightening, special effects shouldn't be cheap and the dedication of director is important too.