Input (grade 12): Guess Who's Coming to Dinner is a 1967 American drama film starring Spencer Tracy, Sidney Poitier and Katharine Hepburn, and featuring Hepburn's niece Katharine Houghton.
Output (grade 11): Guess Who's Coming to Dinner is a 1967 comedy-drama film starring Spencer Tracy, Katharine Hepburn, Sidney Poitier, and Katharine Houghton.