Frankenstein: The True Story is a 1973 British made-for-television film loosely based on the 1818 novel Frankenstein; or, The Modern Prometheus by Mary Shelley. It was directed by Jack Smight, and the screenplay was written by novelist Christopher Isherwood and his longtime partner Don Bachardy.

Christopher William Bradshaw Isherwood was an Anglo-American novelist, playwright, screenwriter, autobiographer, and diarist. His best-known works include Goodbye to Berlin (1939), a semi-autobiographical novel which inspired the musical Cabaret (1966); A Single Man (1964), adapted as a film by Tom Ford in 2009; and Christopher and His Kind (1976), a memoir which "carried him into the heart of the Gay Liberation movement".