Written by Pavel Juracek, this Czech SF feature (1963) borrows substantially and without acknowledgment from Stanislaw Lem's 1961 novel Solaris: in the late 22nd century a space crew transporting colonists to a distant planet are plagued by strange occurrences, sexual tension, and mental breakdown. The movie is badly marred by Juracek's didactic celebration of communist utopia, though Jan Kalis's painterly black-and-white cinematography adds to the sleek, impressively stylized look. Jindrich Polak directed. In Czech with subtitles. 83 min.