A psychologist is sent to a space station orbiting a planet called Solaris to investigate the death of a doctor and the mental problems of cosmonauts on the station. He soon discovers that the water on the planet is a type of brain which brings out repressed memories and obsessions.
- Year: 1972
- Country: Soviet Union
- Genre: Drama, Science Fiction, Mystery
- Studio: Unit Four, Creative Unit of Writers & Cinema Workers, Mosfilm
- Keyword: loss of sense of reality, based on novel or book, extraterrestrial technology, 1970s, subconsciousness, soviet union, hallucination, space travel, astronaut
- Director: Andrei Tarkovsky
- Cast: Donatas Banionis, Natalya Bondarchuk, Jüri Järvet, Anatoliy Solonitsyn, Nikolay Grinko, Vladislav Dvorzhetsky