The researcher conducted product research, questionnaires, and interviews to evaluate audience preferences for a horror film trailer. Strengths included gaining design ideas from existing products and getting detailed feedback from interviews. However, research methods also had weaknesses like products not fully aligning with the concept and questionnaires limiting detailed responses. The response was mixed as audiences desired different elements like runtime, themes, and plot devices, making it challenging to appeal to all. Overall, the research provided useful insights but showed diverse opinions that the trailer will need to balance.