Marilyn Monroe documentary claims to reveal identity of biological father

Titled Marilyn, Her Final Secret, the investigative project follows extensive DNA research to discover who the Hollywood icon's father really was, Variety reports. This information was a secret even to the Gentlemen Prefer Blondes star throughout her life. The documentary was directed by Francois Pomès and includes the work of French molecular archaeologist Ludovic Orlando. Using a hair sample from renowned authenticator John Reznikoff and a saliva sample from the great-grandchild of Marilyn's suspected father, Charles Stanley Gifford, Ludovic pieces together the DNA evidence.