Lost Boundaries (1949)

Scott Carter (Mel Ferrer) is an African-American doctor who is eager to serve his community by working at a black hospital. However, he encounters unexpected opposition when his light skin color results in him being mistaken for a white man. At the urging of his in-laws, Carter and his similarly pale wife, Marcia (Beatrice Pearson), begin to masquerade as white to more easily find their place in a fiercely segregated society. This shocking story is based on real events.