The Greek Tycoon is a 1978 American biographical romantic drama film, of the roman à clef type, directed by J. Lee Thompson. The screenplay by Morton S. Fine is based on a story by Fine, Nico Mastorakis, and Win Wells, who loosely based it on Aristotle Onassis and his relationship with Jacqueline Kennedy. Mastorakis denied this, instead stating "We're not doing a film about Aristotle Onassis. It's a personification of all Greek Tycoons." The film stars Anthony Quinn in the title role and Jacqueline Bisset as the character based on Kennedy. Quinn also appeared in Thompson's picture The Passage, released the following year.