George Bernard Shaw adapted his own play for the screen in this blithe film version of the romance between Caesar (Claude Rains) and Cleopatra (Vivien Leigh). Shaw's Caesar and Cleopatra are merely Henry Higgins and Eliza Doolittle cast back into ancient times with Caesar doting with admiration and burgeoning love upon Cleopatra and expostulating, "You have been growing up since the Sphinx introduced us the other night." The story is a simple one concerning Caesar instructing Cleopatra on how to act like a queen. But Cleopatra is left cold by Caesar and his blatherings.
by Paul Brenner synopsis