What to do about the late Heath Ledger’s last screen role in “The Imaginarium of Dr. Parnassus.” According to Ain’t It Cool News, director Terry Gilliam (who is known as a daring director) will use three alternating actors — Johnny Depp, Colin Farrell and Jude Law. Nice tribute. Ledger’s character has been described as a man in love with a young woman whose soul has been sold to the devil by her father, the traveling showman of the title, in exchange for eternal youth.