The names of the cast and crew, in the opening titles, are placed over a steel grid, as a nod to director Jürgen Roland, who had become famous through the TV series Stahlnetz (1958), which stands for steel grid in German.
The names of the cast and crew, in the opening titles, are placed over a steel grid, as a nod to director Jürgen Roland, who had become famous through the TV series Stahlnetz (1958), which stands for steel grid in German.