Etienne Gouraige, 21; Sidney Poitier's grandson, student. 3. The Bahamian-American actor, director, author, and diplomat Sidney Poitier married Canadian actress Joanna Shimkus almost 43 years ago. The famous star was married twice to two different women, and with them, he shared six beautiful kids. When a cunning murderer vanishes into the rugged mountains of the Pacific Northwest, pursuing FBI agent Warren Stantin (Poitier) must exchange familiar city streets for unknown wilderness trails. Sidney Poitier is a Bahamian-American actor who's also a film director and an author. Our condolences to Sidney Poitier; his ex-wife, Juanita Hardy; his grandkids, Guylaine, Gabrielle, Etienne; and the rest of their family friends, and loved ones. Guess Who's Coming to Dinner is a 1967 American comedy-drama film produced and directed by Stanley Kramer, and written by William Rose.It stars Spencer Tracy, Sidney Poitier, and Katharine Hepburn, and features Hepburn's niece Katharine Houghton.. Together they have two gorgeous daughters. Sidney Poitier returned to the big screen in this action-thriller, after a decade-long absence. 4. May Gina Poitier- Gouraige continue to rest in power. Sidney Poitier is best known for appearing in the 1955 film, "Blackboard Jungle," the 1958 movie, "The Defiant Ones," and the 1963 film, "Lilies of the Field." Sydney Tamiia Poitier, the daughter of award-winning actor Sir Sidney Poitier, has been in the family business of show business for almost 20 years now. Gina Poitier-Gouraige, 55; daughter, administrative assistant. Leandro DiMonriva, 39; son-in-law, writer-producer. 2.