How did you attract/address your audience?

In my opening thriller movie i did a number of things which would attract and address the audience. I used many conventions of a thriller such as

- black and white effects
- eary music
- characters in dark clothing
- signs of death such as blood

I also included a train track in the background, and added in a effective noise which emphasises the train to show the tension building, almost showing that someone is watching and he is not alone once he has been killed

I believe that these things caught the readers attention which helped my opening film better amd attract the audience.