The Silent Star (Der schweigende stern)
When a mysterious object from space is discovered in the Gobi Desert, an expedition is dispatched to Venus to decipher the message it contains. What they discover is a declaration of war on Earth.
The first science fiction film to be made in East Germany, The Silent Star features special effects by Ernst Kunstmann, who worked on the visual effects for Fritz Lang's seminal Metropolis (1927).
Based on the novel The Astronauts by Stanislaw Lem (who also penned Solaris), The Silent Star is set in the era of the great space race and warns of the dangers of nuclear warfare.