The Thing About Jellyfish is a heartfelt drama film in which Millie Bobby Brown portrays the lead character, Suzy Swanson. Based on the novel by Ali Benjamin, the story revolves around Suzy, a young girl who believes that her best friend's drowning was caused by a rare jellyfish sting. Determined to prove her theory, Suzy embarks on a journey of self-discovery and healing. Through her exceptional acting skills, Millie Bobby Brown brings Suzy's emotions and struggles to life, making The Thing About Jellyfish a poignant and thought-provoking film that explores themes of friendship, loss, and resilience.