“Solaris (Russian: Солярис, tr. Solyaris) is a 1972 Soviet science fiction art film based on Stanisław Lem‘s 1961 novel of the same name. The film was co-written and directed by Andrei Tarkovsky, and stars Donatas Banionis and Natalya Bondarchuk. The electronic music score was performed by Eduard Artemyev and features a composition by J.S. Bach as its main theme.

The plot centers on a space station orbiting the fictional planet Solaris, where a scientific mission has stalled because the skeleton crew of three scientists have fallen into emotional crises. Psychologist Kris Kelvin (Banionis) travels to the station to evaluate the situation …” (View the whole article in Wikipedia)