The document discusses different techniques used in film openings including capturing audience interest through an intriguing beginning that starts a storyline, establishing main characters and locations through establishing shots, including title sequences and production credits, using narration or speech to provide context and background, and setting the tone with background music. The opening described in the document uses establishing shots to feature a single main character, includes only two people to leave other characters a mystery, lists title and production details, employs a voiceover narration from one character's point of view, and incorporates a slow piano track to enhance the emotional tone set by the voiceover.