Rhiannon is planning a horror film project and is researching conventions of the genre. Horror films aim to unnerve audiences through disturbing imagery, dark settings, and tense music. They often deal with supernatural, religious, or psychologically disturbed threats. Rhiannon is considering a story about a girl who gets involved in a cult. Her target audience is 15-25 year olds of both genders. An effective teaser trailer would build mystery and intrigue through dark imagery and sounds to capture this internet-savvy audience's attention.