Complex sentence: That year novelists Jerzy Andrzejewski and Czesław Miłosz based a screenplay, "A Robinson Crusoe of Warsaw", on the book, although drastic revisions by Communist government censors prompted Miłosz to withdraw his name from the credits.
Split into simpler sentences: That year novelists Jerzy Andrzejewski and Czesław Miłosz wrote a screenplay, "A Robinson Cruseo of Warsaw", based on the book. Drastic revisions by Communist government censors prompted Miłosz to withdraw his name from the credits.