It stars Sidney Poitier as a physician who wants to marry a young white woman (Katharine Houghton) from a rich Liberal family. The parents, played by Spencer Tracy and Katherine Hepburn, never expected their daughter to come home with a black man, but the film gets into how such a union doesn’t seem right to certain people. But, being a comedy, things turn out all right in the end. Still, interracial marriage is something that, even today, can get deeply frowned upon in certain communities. And while Guess Who’s Coming to Dinner definitely wouldn’t be considered a “black movie,” it does still deal with concepts that black people would be very familiar with.