Julius Caesar is a piece of media.
Gaius Julius Caesar ( [ ˈɡaː.i.ʊs ˈjuː.li.ʊs ˈkae̯.sar ] ; 13 July 100 BC -- 15 March 44 BC ) , known as Julius Caesar , was a Roman politician , general , and notable author of Latin prose . Julius Caesar is a 1953 epic Metro-Goldwyn-Mayer film adaptation of the play by Shakespeare , directed by Joseph L. Mankiewicz , who also wrote the uncredited screenplay , and produced by John Houseman . The film stars Marlon Brando as Mark Antony , James Mason as Brutus , John Gielgud as Cassius , Louis Calhern as Julius Caesar , Edmond O'Brien as Casca , Greer Garson as Calpurnia , and Deborah Kerr as Portia .