The Watermelon Man (1970)

Synopsis
African-American activist and actor Melvin Van Peebles directed this comedy-drama starring Godfrey Cambridge as Jeff Gerber, a white, middle class husband to Althea (Estelle Parson) and father of two who is also a mild bigot. One morning, Jeff wakes up to discover that he has become a black man overnight. After trying in vain to remove his new pigment, Jeff ventures out into the world, only to discover the hostility he once engendered himself. After his neighbors petition to get him out of the neighborhood, his boss (Howard Caine) tries to use his new identity to the company's advantage and his doctor suggests he seek medical care elsewhere, Jeff comes to see the many sides of racism. The only rays of hope in his situation are the friendship of several fellow black people, including a bus driver (D'Urville Martin) and a restaurant counter man (Mantan Moreland). ~ Karl Williams, All Movie Guide