The movie is based on a book written by bestselling children’s author Nguyễn Nhật Ánh. The book was published in 1990 and became one of a bestseller at that time. Mắt Biếc tells the story of Ngan, and his childhood friend, Ha Lan, throughout their old school years. They are deemed to have everlasting love. Nevertheless, things change since Ha Lan comes to a big city for her study. She turns love to a city...