Watch Waterworld (1995) online for free full movie and streaming film in English with HD quality. After the melting of the polar ice caps, most of the globe is underwater. Some humans have survived, and even fewer yet, notably the Mariner (Kevin Costner), have adapted to the ocean by developing gills. A loner by natural world, the Mariner reluctantly befriends Helen (Jeanne Tripplehorn) and her teenage person companion, Enola (Tina Majorino), as they leave suddenly from a spiteful panicky island. Soon the sinister Smokers are pursuing them in the belief that Enola holds the key to finding the mythical Dryland.