From Leaf to Cup is a human-centered documentary that explores the invisible relationship between tea farmers and consumers. Inspired by field research in Chiang Mai, the film follows the journey of tea from mountain plantations to urban tea houses, revealing the people, labour, and craftsmanship behind every cup. Through cinematic observational storytelling, interviews, natural sound, and immersive visuals, the documentary bridges the emotional gap between production and consumption. Research-driven decisions shaped every aspect of the project, from narrative structure to visual style, ensuring the documentary remained authentic, reflective, and emotionally engaging. Ultimately, the film encourages audiences to reconsider the everyday act of drinking tea and recognize the human stories hidden behind it.