"Blackbird" is a film about family love and humanity. The film takes Lily's last family gathering before her suicide as a clue, showing the fetters and emotional intertwining among family members. Lily's suicide plan and her family's opposition reveal the family members' choices in the face of pain and despair. Lily is a woman with strong self-awareness. The way she decided to end her life aroused dissatisfaction and resentment among family members, but she insisted on her decision, taking control of her own life in this way, and at the same time, out of love for her family, Avoid letting them see themselves as terminally ill. At the same time, the daughters gradually discovered that there was an unknown love affair between the mother and the father's childhood. This makes them question their own families and prompts them to re-examine their relationships with them. The rhythm of the whole movie is slow and calm, showing the subtle emotional changes and changes in the relationship between family members. The film reveals the complexity and depth of human nature, and also allows the audience to think more deeply about family, love and death