The document discusses how the author challenged and developed upon various film techniques - mise-en-scene, sound, camera work, and editing - based on their research of real horror film opening sequences, including "Tears", "The Woman in Black", and "Antisocial". Some key ways the author challenged conventions included using a graveyard setting that could be identified, including a heroic character, adding dialogue, and using a variety of shot types. The author developed elements like costumes, deserted settings, changing music tempo, and natural sounds. The goal was to create an effective yet unique horror opening sequence that fit the genre through both challenging and developing film techniques from research of real media products.