Complex sentence: Written by Carl Zuckmayer, Karl Vollmöller and Robert Liebmann, with uncredited contributions by Sternberg, it is based on Heinrich Mann's 1905 novel "Professor Unrat" ("Professor Garbage"), and set in Weimar Germany.
Split into simpler sentences: Written by Carl Zuckmayer, Karl Vollmöller and Robert Liebmann--with uncredited contributions by Sternberg. It is based on Heinrich Mann's 1905 novel "Professor Unrat" ("Professor Garbage"), and set in Weimar Germany.