In the Netflix melodrama Passing, Tessa Thompson and Ruth Negga play childhood friends who are reunited years later in 1920s Harlem. Both women are Black and fair-skinned, but only one of them has chosen to "pass" — to completely abandon their ties to the Black community and identify as white. The movie premiered at Sundance earlier this year, and marks the directorial debut of actress Rebecca Hall. And it's already gaining some awards season heat.