Complex sentence: In the 2007 film version of the novel, he is played by Colin Firth and his name becomes "Aurelianus Caius Antonius", though he is called "Aurelius" for short.
Split into simpler sentences: In the 2007 film version of the novel, he is played by Colin Firth and his name becomes "Aurelianus Caius Antonius". In both he is called "Aurelius" for short.