The filmmaker received feedback on their horror film trailer from an audience of at least 40 people. They received positive comments praising the use of props, makeup, humor, and music. Negative feedback noted issues with the titling, need for voiceover and release date/time, and music being too loud over dialogue. The filmmaker addressed each issue - improving the titling, adding text with release details, adjusting sound levels. They learned feedback is important before release to improve weak areas like titling and sound mixing, and ensure the final product appeals to the target audience.