Complex sentence: The movie is based on the novel The Scarlet Pimpernel by Baroness Emmuska Orczy, starring Anthony Andrews as Sir Percy Blacknel/The Scarlet Pimpernel, the protagonist, Jane Seymour as Marguerite St. Just, the love interest, and Ian McKellen as Chauvelin, the antagonist.
Split into simpler sentences: The movie is based on the novel The Scarlet Pimpernel by Baroness E. Orzcy. Starring Anthony Andrews as Sir Percy Blacknel/The Scarlet Pimpernel, the protagonist, Jane Seymore as Marguerite St. Just, the love interest, and Ian McKellen as Chauvelin, the antagonist.